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Nurmukanova V, Matsvay A, Gordukova M, Shipulin G. Square the Circle: Diversity of Viral Pathogens Causing Neuro-Infectious Diseases. Viruses 2024; 16:787. [PMID: 38793668 PMCID: PMC11126052 DOI: 10.3390/v16050787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/08/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024] Open
Abstract
Neuroinfections rank among the top ten leading causes of child mortality globally, even in high-income countries. The crucial determinants for successful treatment lie in the timing and swiftness of diagnosis. Although viruses constitute the majority of infectious neuropathologies, diagnosing and treating viral neuroinfections remains challenging. Despite technological advancements, the etiology of the disease remains undetermined in over half of cases. The identification of the pathogen becomes more difficult when the infection is caused by atypical pathogens or multiple pathogens simultaneously. Furthermore, the modern surge in global passenger traffic has led to an increase in cases of infections caused by pathogens not endemic to local areas. This review aims to systematize and summarize information on neuroinvasive viral pathogens, encompassing their geographic distribution and transmission routes. Emphasis is placed on rare pathogens and cases involving atypical pathogens, aiming to offer a comprehensive and structured catalog of viral agents with neurovirulence potential.
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Affiliation(s)
- Varvara Nurmukanova
- Federal State Budgetary Institution “Centre for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical Biological Agency, 119121 Moscow, Russia
| | - Alina Matsvay
- Federal State Budgetary Institution “Centre for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical Biological Agency, 119121 Moscow, Russia
| | - Maria Gordukova
- G. Speransky Children’s Hospital No. 9, 123317 Moscow, Russia
| | - German Shipulin
- Federal State Budgetary Institution “Centre for Strategic Planning and Management of Biomedical Health Risks” of the Federal Medical Biological Agency, 119121 Moscow, Russia
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2
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Eilbert W, Matella A. Tick-Borne Diseases. Emerg Med Clin North Am 2024; 42:287-302. [PMID: 38641392 DOI: 10.1016/j.emc.2024.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/21/2024]
Abstract
Ticks are responsible for the vast majority of vector-borne illnesses in the United States. The number of reported tick-borne disease (TBD) cases has more than doubled in the past 20 years. The majority of TBD cases occur in warm weather months in individuals with recent outdoor activities in wooded areas. The risk of contracting a TBD is also highly dependent on geographic location. Between 24 and 48 hours of tick attachment is required for most disease transmission to occur. Only 50% to 70% of patients with a TBD will recall being bitten by a tick, and TBDs are often initially misdiagnosed as a viral illness. Most TBDs are easily treated when diagnosed early in their course.
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Affiliation(s)
- Wesley Eilbert
- Department of Emergency Medicine, University of Illinois Chicago, College of Medicine, Room 469, COME, 1819 West Polk Street, Chicago, IL 60612, USA.
| | - Andrew Matella
- Department of Emergency Medicine, University of Illinois Chicago, College of Medicine, Room 469, COME, 1819 West Polk Street, Chicago, IL 60612, USA
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3
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Berger M, Rosa da Mata S, Pizzolatti NM, Parizi LF, Konnai S, da Silva Vaz I, Seixas A, Tirloni L. An Ixodes persulcatus Inhibitor of Plasmin and Thrombin Hinders Keratinocyte Migration, Blood Coagulation, and Endothelial Permeability. J Invest Dermatol 2024; 144:1112-1123.e7. [PMID: 37996063 PMCID: PMC11034719 DOI: 10.1016/j.jid.2023.10.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/28/2023] [Accepted: 10/10/2023] [Indexed: 11/25/2023]
Abstract
The skin is the first host tissue that the tick mouthparts, tick saliva, and a tick-borne pathogen contact during feeding. Tick salivary glands have evolved a complex and sophisticated pharmacological arsenal, consisting of bioactive molecules, to assist blood feeding and pathogen transmission. In this work, persulcatin, a multifunctional molecule that targets keratinocyte function and hemostasis, was identified from Ixodes persulcatus female ticks. The recombinant persulcatin was expressed and purified and is a 25-kDa acidic protein with 2 Kunitz-type domains. Persulcatin is a classical tight-binding competitive inhibitor of proteases, targeting plasmin (Ki: 28 nM) and thrombin (Ki: 115 nM). It blocks plasmin generation on keratinocytes and inhibits their migration and matrix protein degradation; downregulates matrix metalloproteinase 2 and matrix metalloproteinase 9; and causes a delay in blood coagulation, endothelial cell activation, and thrombin-induced fibrinocoagulation. It interacts with exosite I of thrombin and reduces thrombin-induced endothelial cell permeability by inhibiting vascular endothelial-cadherin disruption. The multifaceted roles of persulcatin as an inhibitor and modulator within the plasminogen-plasmin system and thrombin not only unveil further insights into the intricate mechanisms governing wound healing but also provide a fresh perspective on the intricate interactions between ticks and their host organisms.
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Affiliation(s)
- Markus Berger
- Tick-Pathogen Transmission Unit, Laboratory of Bacteriology, National Institute of Allergy and Infectious Diseases, Hamilton, Montana, USA; Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Sheila Rosa da Mata
- Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | | | - Luís Fernando Parizi
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Satoru Konnai
- Laboratory of Infectious Diseases, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Itabajara da Silva Vaz
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Faculdade de Veterinária, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Instituto Nacional de Ciência e Tecnologia-Entomologia Molecular, Rio de Janeiro, Brazil
| | - Adriana Seixas
- Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil; Instituto Nacional de Ciência e Tecnologia-Entomologia Molecular, Rio de Janeiro, Brazil.
| | - Lucas Tirloni
- Tick-Pathogen Transmission Unit, Laboratory of Bacteriology, National Institute of Allergy and Infectious Diseases, Hamilton, Montana, USA.
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4
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Kozisek F, Cenovic J, Armendariz S, Muthukrishnan S, Park Y, Thomas VC, Chaudhari SS. An optimized artificial blood feeding assay to study tick cuticle biology. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2024; 168:104113. [PMID: 38527710 DOI: 10.1016/j.ibmb.2024.104113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 03/20/2024] [Accepted: 03/22/2024] [Indexed: 03/27/2024]
Abstract
Ticks, ectoparasitic arachnids, are prominent disease vectors impacting both humans and animals. Their unique blood-feeding phase involves significant abdominal cuticle expansion, sharing certain similarities with insects. However, vital aspects, including the mechanisms of cuticle expansion, changes in cuticular protein composition, chitin synthesis, and cuticle function, remain poorly understood. Given that the cuticle expansion is crucial for complete engorgement of the ticks, addressing these knowledge gaps is essential. Traditional tick research involving live animal hosts has inherent limitations, such as ethical concerns and host response variability. Artificial membrane feeding systems provide an alternative approach, offering controlled experimental conditions and reduced ethical dilemmas. These systems enable precise monitoring of tick attachment, feeding parameters, and pathogen acquisition. Despite the existence of various methodologies for artificial tick-feeding systems, there is a pressing need to enhance their reproducibility and effectiveness. In this context, we introduce an improved tick-feeding system that incorporates adjustments related to factors like humidity, temperature, and blood-feeding duration. These refinements markedly boost tick engorgement rates, presenting a valuable tool for in-depth investigations into tick cuticle biology and facilitating studies on molting. This refined system allows for collecting feeding ticks at specific stages, supporting research on tick cuticle biology, and evaluating chemical agents' efficacy in the engorgement process.
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Affiliation(s)
- Faith Kozisek
- Department of Pathology, Microbiology and Immunology, University of Nebraska Medical Center, Omaha, NE, 68198-5900, United States
| | - Jonathon Cenovic
- Department of Pathology, Microbiology and Immunology, University of Nebraska Medical Center, Omaha, NE, 68198-5900, United States
| | - Savannah Armendariz
- Department of Pathology, Microbiology and Immunology, University of Nebraska Medical Center, Omaha, NE, 68198-5900, United States
| | - Subbaratnam Muthukrishnan
- Department of Biochemistry and Molecular Biophysics, Kansas State University, Chalmers Hall, Manhattan, KS, 66506, United States
| | - Yoonseong Park
- Department of Entomology, Kansas State University, Waters Hall, Manhattan, KS, 66506, United States
| | - Vinai C Thomas
- Department of Pathology, Microbiology and Immunology, University of Nebraska Medical Center, Omaha, NE, 68198-5900, United States
| | - Sujata S Chaudhari
- Department of Pathology, Microbiology and Immunology, University of Nebraska Medical Center, Omaha, NE, 68198-5900, United States.
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Garba A, Riley J, Lahmers KK, Eastwood G. Widespread Circulation of Tick-Borne Viruses in Virginia-Evidence of Exposure to Heartland, Bourbon, and Powassan Viruses in Wildlife and Livestock. Microorganisms 2024; 12:899. [PMID: 38792729 PMCID: PMC11124039 DOI: 10.3390/microorganisms12050899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/18/2024] [Accepted: 04/23/2024] [Indexed: 05/26/2024] Open
Abstract
Emerging tick-borne viruses such as Powassan virus (POWV), Bourbon virus (BRBV), and Heartland virus (HRTV), whilst rare, can cause severe health problems in humans. While limited clinical cases have been reported thus far in Virginia, the presence of tick-borne viruses poses a serious health threat, and the extent of their prevalence in Virginia is unknown. Here, we sought evidence of POWV, BRBV, and HRTV exposure in Virginia via a serological assessment of wildlife and livestock. Wildlife in Virginia were found to be seropositive against POWV (18%), BRBV (8%), and HRTV (5%), with western and northern regions of the state having a higher prevalence. Multiple wildlife species were shown to have been exposed to each virus examined. To a lesser extent, cattle also showed exposure to tick-borne viruses, with seroprevalences of 1%, 1.2%, and 8% detected in cattle against POWV, BRBV, and HRTV, respectively. Cross-reactivity against other known circulating mosquito-borne flaviviruses was ruled out. In conclusion, there is widespread exposure to tick-borne viruses in western and northern Virginia, with exposure to a diverse range of animal populations. Our study provides the first confirmation that HRTV is circulating in the Commonwealth. These findings strengthen the existing evidence of emerging tick-borne viruses in Virginia and highlight the need for public health vigilance to avoid tick bites.
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Affiliation(s)
- Ahmed Garba
- Department of Entomology, College of Agriculture and Life Sciences, Virginia Tech, Blacksburg, VA 24061, USA;
| | | | - Kevin K. Lahmers
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Blacksburg, VA 24061, USA;
| | - Gillian Eastwood
- Department of Entomology, College of Agriculture and Life Sciences, Virginia Tech, Blacksburg, VA 24061, USA;
- Center for Emerging Zoonotic and Arthropod-Borne Pathogens (CeZAP), Virginia Tech, Blacksburg, VA 24061, USA
- The Global Change Center, Virginia Tech, Blacksburg, VA 24061, USA
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Kimemia BB, Musila L, Langat S, Odoyo E, Cinkovich S, Abuom D, Yalwala S, Khamadi S, Johnson J, Garges E, Ojwang E, Eyase F. Detection of pathogenic bacteria in ticks from Isiolo and Kwale counties of Kenya using metagenomics. PLoS One 2024; 19:e0296597. [PMID: 38687700 PMCID: PMC11060535 DOI: 10.1371/journal.pone.0296597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 04/09/2024] [Indexed: 05/02/2024] Open
Abstract
Ticks are arachnid ectoparasites that rank second only to mosquitoes in the transmission of human diseases including bacteria responsible for anaplasmosis, ehrlichiosis, spotted fevers, and Lyme disease among other febrile illnesses. Due to the paucity of data on bacteria transmitted by ticks in Kenya, this study undertook a bacterial metagenomic-based characterization of ticks collected from Isiolo, a semi-arid pastoralist County in Eastern Kenya, and Kwale, a coastal County with a monsoon climate in the southern Kenyan border with Tanzania. A total of 2,918 ticks belonging to 3 genera and 10 species were pooled and screened in this study. Tick identification was confirmed through the sequencing of the Cytochrome C Oxidase Subunit 1 (COI) gene. Bacterial 16S rRNA gene PCR amplicons obtained from the above samples were sequenced using the MinION (Oxford Nanopore Technologies) platform. The resulting reads were demultiplexed in Porechop, followed by trimming and filtering in Trimmomatic before clustering using Qiime2-VSearch. A SILVA database pretrained naïve Bayes classifier was used to classify the Operational Taxonomic Units (OTUs) taxonomically. The bacteria of clinical interest detected in pooled tick assays were as follows: Rickettsia spp. 59.43% of pools, Coxiella burnetii 37.88%, Proteus mirabilis 5.08%, Cutibacterium acnes 6.08%, and Corynebacterium ulcerans 2.43%. These bacteria are responsible for spotted fevers, query fever (Q-fever), urinary tract infections, skin and soft tissue infections, eye infections, and diphtheria-like infections in humans, respectively. P. mirabilis, C. acnes, and C. ulcerans were detected only in Isiolo. Additionally, COI sequences allowed for the identification of Rickettsia and Coxiella species to strain levels in some of the pools. Diversity analysis revealed that the tick genera had high levels of Alpha diversity but the differences between the microbiomes of the three tick genera studied were not significant. The detection of C. acnes, commonly associated with human skin flora suggests that the ticks may have contact with humans potentially exposing them to bacterial infections. The findings in this study highlight the need for further investigation into the viability of these bacteria and the competency of ticks to transmit them. Clinicians in these high-risk areas also need to be appraised for them to include Rickettsial diseases and Q-fever as part of their differential diagnosis.
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Affiliation(s)
- Bryson Brian Kimemia
- Department of Emerging Infectious Diseases, United States Army Medical Research Directorate-Africa (USAMRD-A), Nairobi, Kenya
- Jomo Kenyatta University of Agriculture and Technology (JKUAT), Nairobi, Kenya
| | - Lillian Musila
- Department of Emerging Infectious Diseases, United States Army Medical Research Directorate-Africa (USAMRD-A), Nairobi, Kenya
- Kenya Medical Research Institute (KEMRI), Centre for Microbiology Research, Nairobi, Kenya
| | - Solomon Langat
- Kenya Medical Research Institute (KEMRI), Centre for Virus Research, Nairobi, Kenya
| | - Erick Odoyo
- Department of Emerging Infectious Diseases, United States Army Medical Research Directorate-Africa (USAMRD-A), Nairobi, Kenya
| | - Stephanie Cinkovich
- United States Armed Forces Health Surveillance Division, Global Emerging Infections Surveillance Branch, Silver Spring, Maryland, United States of America
| | - David Abuom
- Department of Emerging Infectious Diseases, United States Army Medical Research Directorate-Africa (USAMRD-A), Nairobi, Kenya
| | - Santos Yalwala
- Department of Emerging Infectious Diseases, United States Army Medical Research Directorate-Africa (USAMRD-A), Nairobi, Kenya
| | - Samoel Khamadi
- Kenya Medical Research Institute (KEMRI), Centre for Virus Research, Nairobi, Kenya
| | - Jaree Johnson
- United States Armed Forces Pest Management Board, Silver Spring, Maryland, United States of America
| | - Eric Garges
- Department of Emerging Infectious Diseases, United States Army Medical Research Directorate-Africa (USAMRD-A), Nairobi, Kenya
| | - Elly Ojwang
- Department of Emerging Infectious Diseases, United States Army Medical Research Directorate-Africa (USAMRD-A), Nairobi, Kenya
| | - Fredrick Eyase
- Department of Emerging Infectious Diseases, United States Army Medical Research Directorate-Africa (USAMRD-A), Nairobi, Kenya
- Kenya Medical Research Institute (KEMRI), Centre for Virus Research, Nairobi, Kenya
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7
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Pustijanac E, Buršić M, Millotti G, Paliaga P, Iveša N, Cvek M. Tick-Borne Bacterial Diseases in Europe: Threats to public health. Eur J Clin Microbiol Infect Dis 2024:10.1007/s10096-024-04836-5. [PMID: 38676855 DOI: 10.1007/s10096-024-04836-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 04/22/2024] [Indexed: 04/29/2024]
Abstract
BACKGROUND Tick-borne diseases, caused by bacterial pathogens, pose a growing threat to public health in Europe. This paper provides an overview of the historical context of the discovery of the most impactful pathogens transmitted by ticks, including Borrelia burgdorferi sensu lato, Rickettsia spp., Anaplasma spp., Francisella spp., Ehrlichia spp., and Neoehrlichia mikurensis. Understanding the historical context of their discovery provides insight into the evolution of our understanding of these pathogens. METHODS AND RESULTS Systematic investigation of the prevalence and transmission dynamics of these bacterial pathogens is provided, highlighting the intricate relationships among ticks, host organisms, and the environment. Epidemiology is explored, providing an in-depth analysis of clinical features associated with infections. Diagnostic methodologies undergo critical examination, with a spotlight on technological advancements that enhance detection capabilities. Additionally, the paper discusses available treatment options, addressing existing therapeutic strategies and considering future aspects. CONCLUSIONS By integrating various pieces of information on these bacterial species, the paper aims to provide a comprehensive resource for researchers and healthcare professionals addressing the impact of bacterial tick-borne diseases in Europe. This review underscores the importance of understanding the complex details influencing bacterial prevalence and transmission dynamics to better combat these emerging public health threats.
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Affiliation(s)
- Emina Pustijanac
- Faculty of Natural Sciences, Juraj Dobrila University of Pula, Zagrebačka 30, 52100, Pula, Croatia.
| | - Moira Buršić
- Faculty of Natural Sciences, Juraj Dobrila University of Pula, Zagrebačka 30, 52100, Pula, Croatia
| | - Gioconda Millotti
- Faculty of Natural Sciences, Juraj Dobrila University of Pula, Zagrebačka 30, 52100, Pula, Croatia
| | - Paolo Paliaga
- Faculty of Natural Sciences, Juraj Dobrila University of Pula, Zagrebačka 30, 52100, Pula, Croatia
| | - Neven Iveša
- Faculty of Natural Sciences, Juraj Dobrila University of Pula, Zagrebačka 30, 52100, Pula, Croatia
| | - Maja Cvek
- Faculty of Medicine, University of Rijeka, Braće Branchetta 20, 51000, Rijeka, Croatia
- Teaching Institute of Public Health of the Region of Istria, Nazorova 23, 52100, Pula, Croatia
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8
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Boulanger N, Aran D, Maul A, Camara BI, Barthel C, Zaffino M, Lett MC, Schnitzler A, Bauda P. Multiple factors affecting Ixodes ricinus ticks and associated pathogens in European temperate ecosystems (northeastern France). Sci Rep 2024; 14:9391. [PMID: 38658696 DOI: 10.1038/s41598-024-59867-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 04/16/2024] [Indexed: 04/26/2024] Open
Abstract
In Europe, the main vector of tick-borne zoonoses is Ixodes ricinus, which has three life stages. During their development cycle, ticks take three separate blood meals from a wide variety of vertebrate hosts, during which they can acquire and transmit human pathogens such as Borrelia burgdorferi sensu lato, the causative agent of Lyme borreliosis. In this study conducted in Northeastern France, we studied the importance of soil type, land use, forest stand type, and temporal dynamics on the abundance of ticks and their associated pathogens. Negative binomial regression modeling of the results indicated that limestone-based soils were more favorable to ticks than sandstone-based soils. The highest tick abundance was observed in forests, particularly among coniferous and mixed stands. We identified an effect of habitat time dynamics in forests and in wetlands: recent forests and current wetlands supported more ticks than stable forests and former wetlands, respectively. We observed a close association between tick abundance and the abundance of Cervidae, Leporidae, and birds. The tick-borne pathogens responsible for Lyme borreliosis, anaplasmosis, and hard tick relapsing fever showed specific habitat preferences and associations with specific animal families. Machine learning algorithms identified soil related variables as the best predictors of tick and pathogen abundance.
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Affiliation(s)
- Nathalie Boulanger
- Université de Strasbourg UR3073: PHAVI: Groupe Borrelia, 67000, Strasbourg, France.
- Centre National de Référence Borrelia, Centre Hospitalier Régional Universitaire, Strasbourg, France.
| | - Delphine Aran
- Université de Lorraine, CNRS, LIEC, 57000, Metz, France
| | - Armand Maul
- Université de Lorraine, CNRS, LIEC, 57000, Metz, France
| | - Baba Issa Camara
- Université de Lorraine, CNRS, LIEC, 57000, Metz, France
- Université de Lorraine, LCOMS EA 7306, 57073, Metz, France
| | - Cathy Barthel
- Université de Strasbourg UR3073: PHAVI: Groupe Borrelia, 67000, Strasbourg, France
| | - Marie Zaffino
- Université de Lorraine, CNRS, LIEC, 57000, Metz, France
| | | | - Annick Schnitzler
- Université de Lorraine, CNRS, LIEC, 57000, Metz, France
- Museum National d'Histoire Naturelle, UMR 7194 HNHP CNRS/MNHN/UPVD, 75000, Paris, France
| | - Pascale Bauda
- Université de Lorraine, CNRS, LIEC, 57000, Metz, France.
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Zhong Z, Wang K, Wang J. Tick symbiosis. CURRENT OPINION IN INSECT SCIENCE 2024; 62:101163. [PMID: 38244689 DOI: 10.1016/j.cois.2024.101163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 12/29/2023] [Accepted: 01/12/2024] [Indexed: 01/22/2024]
Abstract
As obligate blood-feeders, ticks serve as vectors for a variety of pathogens that pose threats on both human and livestock health. The microbiota that ticks harbor play important roles in influencing tick nutrition, development, reproduction, and vector. These microbes also affect the capacity of ticks to transmit pathogens (vector competence). Therefore, comprehending the functions of tick microbiota will help in developing novel and effective tick control strategies. Here, we summarize the effects of main tick symbiotic bacteria on tick physiology and vector competency.
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Affiliation(s)
- Zhengwei Zhong
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, PR China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, PR China
| | - Kun Wang
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, PR China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, PR China
| | - Jingwen Wang
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, PR China; Ministry of Education Key Laboratory of Contemporary Anthropology, School of Life Sciences, Fudan University, Shanghai, PR China.
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10
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Wang YF, Zheng JJ, Zhang MZ, Du LF, Cui XM, Han XY, Tian D, Cheng N, Wang N, Gao WY, Wang BH, Shi XY, Jiang JF, Jia N, Sun Y, Shi W, Cao WC. The complete mitogenome of Argas vulgaris (Filippova, 1961) and its phylogenetic status in subgenus Argas (Acari: Argasidae). Int J Parasitol Parasites Wildl 2024; 23:100912. [PMID: 38375444 PMCID: PMC10875242 DOI: 10.1016/j.ijppaw.2024.100912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/09/2024] [Accepted: 01/30/2024] [Indexed: 02/21/2024]
Abstract
Soft ticks (Ixodida: Argasidae) are ectoparasites of terrestrial vertebrates with worldwide distributions. As one representative group of Argasidae, the genus Argas has an important vectorial role in transmitting zoonotic diseases. However, our knowledge of the subgenus Argas in China is still limited, as most literature only lists occurrence records or describes specific case reports without providing detailed morphological characteristics and further molecular data. This study aims to characterize Argas vulgaris through complete mitochondrial sequencing and morphological diagnostic techniques based on a batch of adult specimens collected from Ningxia Hui Autonomous Regions (NXHAR), North China. The morphology and microstructures of Ar. vulgaris and other lectotypes of argasid ticks in the subgenus Argas were also observed using a stereomicroscope. Following DNA extraction and sequencing, a complete mitochondrial sequence of Ar. vulgaris was assembled and analyzed within a phylogenetic context. The 14,479 bp mitogenome of Ar. vulgaris consists of 37 genes, including 13 genes for protein coding, two for ribosomal RNA, 22 for transfer RNA, and one for control region (D-loops). Phylogenetic analysis of Ar. vulgaris showed 98.27%-100% nucleotide identity with Ar. japonicus, indicating a close relationship between the two tick species. The morphological diagnostic features to differentiate Ar. vulgaris from other ticks within the subgenus Argas included the location of the anus and setae on the anterior lip of the female genital aperture. This study provided high-resolution scanning electron microscope images of female Ar. vulgaris and corresponding molecular data, representing valuable resources for future accurate species identification.
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Affiliation(s)
- Yi-Fei Wang
- Institute of EcoHealth, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Jia-Jing Zheng
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
- School of Life Sciences, Xiamen University, Xiamen 361005, Fujian, China
| | - Ming-Zhu Zhang
- Institute of EcoHealth, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Li-Feng Du
- Institute of EcoHealth, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Xiao-Ming Cui
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Xiao-Yu Han
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Di Tian
- School of Public Health, Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Nuo Cheng
- Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 102600, China
| | - Ning Wang
- Institute of EcoHealth, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Wan-Ying Gao
- Institute of EcoHealth, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Bai-Hui Wang
- Institute of EcoHealth, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
| | - Xiao-Yu Shi
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Jia-Fu Jiang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Na Jia
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Yi Sun
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Wenqiang Shi
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Wu-Chun Cao
- Institute of EcoHealth, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, China
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing 100071, China
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Quek ZBR, Ng SH. Hybrid-Capture Target Enrichment in Human Pathogens: Identification, Evolution, Biosurveillance, and Genomic Epidemiology. Pathogens 2024; 13:275. [PMID: 38668230 PMCID: PMC11054155 DOI: 10.3390/pathogens13040275] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/11/2024] [Accepted: 03/18/2024] [Indexed: 04/29/2024] Open
Abstract
High-throughput sequencing (HTS) has revolutionised the field of pathogen genomics, enabling the direct recovery of pathogen genomes from clinical and environmental samples. However, pathogen nucleic acids are often overwhelmed by those of the host, requiring deep metagenomic sequencing to recover sufficient sequences for downstream analyses (e.g., identification and genome characterisation). To circumvent this, hybrid-capture target enrichment (HC) is able to enrich pathogen nucleic acids across multiple scales of divergences and taxa, depending on the panel used. In this review, we outline the applications of HC in human pathogens-bacteria, fungi, parasites and viruses-including identification, genomic epidemiology, antimicrobial resistance genotyping, and evolution. Importantly, we explored the applicability of HC to clinical metagenomics, which ultimately requires more work before it is a reliable and accurate tool for clinical diagnosis. Relatedly, the utility of HC was exemplified by COVID-19, which was used as a case study to illustrate the maturity of HC for recovering pathogen sequences. As we unravel the origins of COVID-19, zoonoses remain more relevant than ever. Therefore, the role of HC in biosurveillance studies is also highlighted in this review, which is critical in preparing us for the next pandemic. We also found that while HC is a popular tool to study viruses, it remains underutilised in parasites and fungi and, to a lesser extent, bacteria. Finally, weevaluated the future of HC with respect to bait design in the eukaryotic groups and the prospect of combining HC with long-read HTS.
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Affiliation(s)
- Z. B. Randolph Quek
- Defence Medical & Environmental Research Institute, DSO National Laboratories, Singapore 117510, Singapore
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12
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Ostfeld RS, Adish S, Mowry S, Bremer W, Duerr S, Evans AS, Fischhoff IR, Keating F, Pendleton J, Pfister A, Teator M, Keesing F. Effects of residential acaricide treatments on patterns of pathogen coinfection in blacklegged ticks. Parasitology 2024:1-7. [PMID: 38494476 DOI: 10.1017/s0031182024000349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Medically important ixodid ticks often carry multiple pathogens, with individual ticks frequently coinfected and capable of transmitting multiple infections to hosts, including humans. Acquisition of multiple zoonotic pathogens by immature blacklegged ticks (Ixodes scapularis) is facilitated when they feed on small mammals, which are the most competent reservoir hosts for Anaplasma phagocytophilum (which causes anaplasmosis in humans), Babesia microti (babesiosis) and Borrelia burgdorferi (Lyme disease). Here, we used data from a large-scale, long-term experiment to ask whether patterns of single and multiple infections in questing nymphal I. scapularis ticks from residential neighbourhoods differed from those predicted by independent assortment of pathogens, and whether patterns of coinfection were affected by residential application of commercial acaricidal products. Quantitative polymerase chain reaction was used for pathogen detection in multiplex reactions. In control neighbourhoods and those treated with a fungus-based biopesticide deployed against host-seeking ticks (Met52), ticks having only single infections of either B. microti or B. burgdorferi were significantly less common than expected, whereas coinfections with these 2 pathogens were significantly more common. However, use of tick control system bait boxes, which kill ticks attempting to feed on small mammals, eliminated the bias towards coinfection. Although aimed at reducing the abundance of host-seeking ticks, control methods directed at ticks attached to small mammals may influence human exposure to coinfected ticks and the probability of exposure to multiple tick-borne infections.
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Affiliation(s)
| | - Sahar Adish
- Cary Institute of Ecosystem Studies, Millbrook, NY 12545, USA
| | - Stacy Mowry
- Cary Institute of Ecosystem Studies, Millbrook, NY 12545, USA
| | - William Bremer
- Cary Institute of Ecosystem Studies, Millbrook, NY 12545, USA
| | - Shannon Duerr
- Cary Institute of Ecosystem Studies, Millbrook, NY 12545, USA
| | - Andrew S Evans
- Department of Behavioral and Community Health, Dutchess County, NY 12601, USA
| | | | - Fiona Keating
- Cary Institute of Ecosystem Studies, Millbrook, NY 12545, USA
| | | | - Ashley Pfister
- Cary Institute of Ecosystem Studies, Millbrook, NY 12545, USA
| | - Marissa Teator
- Cary Institute of Ecosystem Studies, Millbrook, NY 12545, USA
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Enferadi A, Sarani S, Mohammadipour S, Hasani SJ, Ajdari A, Asl MN, Khademi P. Molecular detection of Coxiella burnetii in ticks collected from Iran. INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2024; 118:105562. [PMID: 38307395 DOI: 10.1016/j.meegid.2024.105562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 01/24/2024] [Accepted: 01/26/2024] [Indexed: 02/04/2024]
Abstract
The present study was conducted with the aim of investigating the prevalence and genetic structure of Coxiella burnetii in tick samples collected from domestic animals in Hormozgan province146 tick samples were randomly collected from cattle, sheep, goat, camel and dog herds in seven cities of Hormozgan. After the DNA was extracted from each tick sample; Nested-PCR method was used to identify the presence of C. burnetii using IS1111 transposon gene and isocitrate dehydrogenase icd gene. In addition, phylogenetic analysis and tree diagram were constructed based on IS1111 and icd genes. The results showed that out of 146 pool tick samples, 40 pool samples based on IS1111 gene and 32 pool samples based on icd gene were infected with C. burnetii. When results were stratified by livestock type, infection rates were highest in sheep ticks (37.5%, 95% CI: 21.2% - 57.29%), followed by cattle ticks (32.14%, 95% CI: 17.90% - 50.66%) and dog tick (15%, 95% CI: 70.6% - 29%). In camel and goat ticks, the infection rate was 15.90 and 23.07%, respectively. In conclusion, this study emphasizes the role of ticks as potential carriers of C. burneti. The results indicate the importance of cattle, sheep, goats, camels and dogs in Hormozgan region as effective factors in the epidemiology of Q fever and its impact on public health. In addition, a high degree of similarity (from 99% to 100%) was observed between IS1111 and icd genes in this study and recorded sequences from different regions of the world.
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Affiliation(s)
- Ahmad Enferadi
- Department of Microbiology, Faculty of Veterinary Medicine, Urmia University, Iran
| | - Saeedeh Sarani
- Department of Pathobiology, Faculty of Veterinary Medicine, Zabol University, Iran
| | - Shirin Mohammadipour
- Department of Pathobiology, Faculty of Veterinary Medicine, Kerman University, Iran
| | | | - Afshin Ajdari
- Department of Microbiology, Faculty of Veterinary Medicine, Urmia University, Iran
| | - Maryam Najafi Asl
- Department of Pathobiology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Iran.
| | - Peyman Khademi
- Department of Microbiology and Food Hygiene, Faculty of Veterinary Medicine, Lorestan University, Iran.
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14
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Chaorattanakawee S, Tachavarong W, Hananantachai H, Bunsermyos W, Chanarat N, Promsathaporn S, Tippayachai B, Sakolvaree J, Pitaksajjakul P, Benjathummarak S, Srinoppawan K, Saunders D, Lindroth EJ, Takhampunya R. Seasonal pattern of questing ticks and prevalence of pathogenic Rickettsia and Anaplasmataceae in Khao Yai national park, Thailand. Travel Med Infect Dis 2024; 58:102696. [PMID: 38360157 DOI: 10.1016/j.tmaid.2024.102696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 01/08/2024] [Accepted: 02/12/2024] [Indexed: 02/17/2024]
Abstract
BACKGROUND Tick-borne diseases (TBD) are considered neglected diseases in Thailand with disease burden likely underestimated. To assess risk for emerging TBD in Thailand, the seasonality of questing tick and pathogen prevalence were studied in Khao Yai National Park, a top tourist destination. METHODS During 2019, questing ticks around tourist attractions were systematically collected bimonthly and analyzed for Rickettsia and Anaplasmataceae bacterial species by polymerase chain reaction and DNA sequencing. RESULTS Larvae and nymphs of questing ticks peaked in Khao Yai National Park during the late rainy-winter season, though no specific trends were observed in adult ticks. Winter (November to February) was the highest risk for human tick-bites due to higher numbers of both ticks and visitors. Of the total 5916 ticks analyzed (651 pools), Anaplasma phagocytophilum, Neoehrlichia mikurensis, Ehrlichia ewingii, and Ehrlichia chaffeensis were detected at low rates (≤0.05%). There was a higher prevalence of human rickettsioses (0.2-7%) in ticks surveyed with Rickettsia tamurae, Rickettsia raoultii, and Rickettsia montana the major species. Amblyomma ticks had the highest prevalence of Rickettsia (85%, 35/44 Amblyomma adults), in which only R. tamurae and R. raoultii were found in Amblyomma with mixed species infections common. We report the first detection of R. africae-like and N. mikurensis in Ixodes granulatus adults in Thailand, suggesting I. granulatus as a potential vector for these pathogens. CONCLUSION This study demonstrated the risk of emerging TBD in Thailand and underscores the need for tick-bite prevention among tourists in Thailand.
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Affiliation(s)
- Suwanna Chaorattanakawee
- Department of Parasitology and Entomology, Faculty of Public Health, Mahidol University, Bangkok, Thailand.
| | - Wirunya Tachavarong
- Department of Parasitology and Entomology, Faculty of Public Health, Mahidol University, Bangkok, Thailand
| | - Hathairad Hananantachai
- Department of Parasitology and Entomology, Faculty of Public Health, Mahidol University, Bangkok, Thailand
| | - Watanyu Bunsermyos
- Department of Parasitology and Entomology, Faculty of Public Health, Mahidol University, Bangkok, Thailand
| | - Nitima Chanarat
- Department of Entomology, Armed Forces Research Institute of Medical Sciences-United States Army Medical Directorate, Bangkok, Thailand
| | - Sommai Promsathaporn
- Department of Entomology, Armed Forces Research Institute of Medical Sciences-United States Army Medical Directorate, Bangkok, Thailand
| | - Bousaraporn Tippayachai
- Department of Entomology, Armed Forces Research Institute of Medical Sciences-United States Army Medical Directorate, Bangkok, Thailand
| | - Jira Sakolvaree
- Department of Entomology, Armed Forces Research Institute of Medical Sciences-United States Army Medical Directorate, Bangkok, Thailand
| | - Pannamthip Pitaksajjakul
- Department of Social and Environmental Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand; Center of Excellence for Antibody Research, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Surachet Benjathummarak
- Center of Excellence for Antibody Research, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Kanchit Srinoppawan
- Department of National Parks, Wildlife and Plant Conservation, Bangkok, Thailand
| | - David Saunders
- Uniformed Services University School of Medicine, Bethesda, MD, USA
| | - Erica J Lindroth
- Department of Entomology, Armed Forces Research Institute of Medical Sciences-United States Army Medical Directorate, Bangkok, Thailand
| | - Ratree Takhampunya
- Department of Entomology, Armed Forces Research Institute of Medical Sciences-United States Army Medical Directorate, Bangkok, Thailand
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Polsomboon Nelson S, Ergunay K, Bourke BP, Reinbold-Wasson DD, Caicedo-Quiroga L, Kirkitadze G, Chunashvili T, Tucker CL, Linton YM. Nanopore-based metagenomics reveal a new Rickettsia in Europe. Ticks Tick Borne Dis 2024; 15:102305. [PMID: 38150911 DOI: 10.1016/j.ttbdis.2023.102305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 12/29/2023]
Abstract
Accurate identification of tick-borne bacteria, including those associated with rickettsioses, pose significant challenges due to the polymicrobial and polyvectoral nature of the infections. We aimed to carry out a comparative evaluation of a non-targeted metagenomic approach by nanopore sequencing (NS) and commonly used PCR assays amplifying Rickettsia genes in field-collected ticks. The study included a total of 310 ticks, originating from Poland (44.2 %) and Bulgaria (55.8 %). Samples comprised 7 species, the majority of which were Ixodes ricinus (62.9 %), followed by Dermacentor reticulatus (21.2 %). Screening was carried out in 55 pools, using total nucleic acid extractions from individual ticks. NS and ompA/gltA PCRs identified Rickettsia species in 47.3 % and 54.5 % of the pools, respectively. The most frequently detected species were Rickettsia asiatica (27.2 %) and Rickettsia raoultii (21.8 %), followed by Rickettsia monacensis (3.6 %), Rickettsia helvetica (1.8 %), Rickettsia massiliae (1.8 %) and Rickettsia tillamookensis (1.8 %). Phylogeny construction on mutS, uvrD, argS and virB4 sequences and a follow-up deep sequencing further supported R. asiatica identification, documented in Europe for the first time. NS further enabled detection of Anaplasma phagocytophilum (9.1 %), Coxiella burnetii (5.4 %) and Neoehrlichia mikurensis (1.8 %), as well as various endosymbionts of Rickettsia and Coxiella. Co-detection of multiple rickettsial and non-rickettsial bacteria were observed in 16.4 % of the pools with chromosome and plasmid-based contigs. In conclusion, non-targeted metagenomic sequencing was documented as a robust strategy capable of providing a broader view of the tick-borne bacterial pathogen spectrum.
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Affiliation(s)
- Suppaluck Polsomboon Nelson
- Walter Reed Biosystematics Unit (WRBU), Smithsonian Institution, Museum Support Center, Suitland, MD, USA; Walter Reed Army Institute of Research (WRAIR), Silver Spring, MD, USA; Smithsonian Institution, Department of Entomology, National Museum of Natural History (NMNH), Washington, DC, USA
| | - Koray Ergunay
- Walter Reed Biosystematics Unit (WRBU), Smithsonian Institution, Museum Support Center, Suitland, MD, USA; Walter Reed Army Institute of Research (WRAIR), Silver Spring, MD, USA; Smithsonian Institution, Department of Entomology, National Museum of Natural History (NMNH), Washington, DC, USA; Hacettepe University, Faculty of Medicine, Ankara, Turkey.
| | - Brian P Bourke
- Walter Reed Biosystematics Unit (WRBU), Smithsonian Institution, Museum Support Center, Suitland, MD, USA; Walter Reed Army Institute of Research (WRAIR), Silver Spring, MD, USA; Smithsonian Institution, Department of Entomology, National Museum of Natural History (NMNH), Washington, DC, USA
| | | | - Laura Caicedo-Quiroga
- Walter Reed Biosystematics Unit (WRBU), Smithsonian Institution, Museum Support Center, Suitland, MD, USA; Walter Reed Army Institute of Research (WRAIR), Silver Spring, MD, USA; Smithsonian Institution, Department of Entomology, National Museum of Natural History (NMNH), Washington, DC, USA
| | - Giorgi Kirkitadze
- U.S. Army Medical Research Directorate - Georgia (USAMRD-G), Tbilisi, Georgia
| | - Tamar Chunashvili
- U.S. Army Medical Research Directorate - Georgia (USAMRD-G), Tbilisi, Georgia
| | - Cynthia L Tucker
- Walter Reed Biosystematics Unit (WRBU), Smithsonian Institution, Museum Support Center, Suitland, MD, USA; Walter Reed Army Institute of Research (WRAIR), Silver Spring, MD, USA
| | - Yvonne-Marie Linton
- Walter Reed Biosystematics Unit (WRBU), Smithsonian Institution, Museum Support Center, Suitland, MD, USA; Walter Reed Army Institute of Research (WRAIR), Silver Spring, MD, USA; Smithsonian Institution, Department of Entomology, National Museum of Natural History (NMNH), Washington, DC, USA
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16
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Chakraborty S, Kopsco H, Evans C, Mateus-Pinilla N, Smith R. Assessing knowledge gaps and empowering Extension workers in Illinois with information on ticks and tickborne diseases through KAP surveys. Heliyon 2024; 10:e25789. [PMID: 38352775 PMCID: PMC10862665 DOI: 10.1016/j.heliyon.2024.e25789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 01/19/2024] [Accepted: 02/02/2024] [Indexed: 02/16/2024] Open
Abstract
Tickborne diseases (TBDs) are increasingly prevalent in Illinois and the Upper Midwest region. People who work in occupations that require time outdoors in agricultural or natural settings, such as some Extension workers, are at risk of tick bites and TBDs. Additionally, Extension workers are often a primary source of information about ticks and TBDs in rural communities. However, there is limited information on the level of awareness about ticks and TBDs in the Extension community. The goals of this study were to sequentially i) determine the baseline awareness of Extension workers in Illinois about ticks and TBDs using a knowledge, attitudes, and practices (KAP) survey tool, ii) provide comprehensive training on ticks and TBDs to this demographic, and iii) measure the uptake of knowledge after the training intervention through a post-training survey. The study period was from June 2022 until May 2023. We received 233 pre-training and 93 paired post-training survey responses. Most survey respondents were Extension volunteers, identified as women, and were over 50 years old. Knowledge about ticks and TBDs varied. We identified several gaps in their current tick awareness, most importantly, in tick prevention measures, tick identification, and TBDs in general. TBD knowledge, attitude, and practice scores all significantly improved after training (p < 0.001), with a mean difference of 10.47, 1.49, and 2.64 points, respectively. Additionally, both Extension professionals (79.2 %) and Extension volunteers (66.7 %) were more likely to feel confident in engaging with their stakeholders on ticks and TBDs after participating in training. Poisson models revealed that higher attitude and practice scores and greater self-reported knowledge were the factors most significantly associated with higher TBD knowledge. We found that greater concern for ticks and TBD (attitudes) and adherence to science-based prevention and management methods (practices) were also associated with higher knowledge scores. To our knowledge, this is the first study in Illinois to capture Extension workers' awareness of ticks and TBDs. The results highlight Extension workers' interest in filling knowledge gaps through learning, and the importance of training Extension workers to disseminate reliable and updated information on ticks and TBDs to their constituents, a critical step in preventing TBDs.
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Affiliation(s)
- S. Chakraborty
- Program in Ecology, Evolution & Conservation Biology, University of Illinois, Urbana Champaign, 505 S Goodwin Avenue, Urbana, IL, 61801, USA
| | - H. Kopsco
- Department of Ecology, Evolution and Environmental Biology, Columbia University, 10th floor Schermerhorn Ext., 1200 Amsterdam Ave, New York, NY, 10027, USA
- Prairie Research Institute, Illinois Natural History Survey, University of Illinois, Urbana Champaign, 1816 S Oak, Champaign, IL, 61820, USA
| | - C. Evans
- Department of Natural Resources and Environmental Sciences, University of Illinois, Urbana Champaign, 354 State Highway 145 N, Simpson, IL, 62985, USA
| | - N. Mateus-Pinilla
- Department of Natural Resources and Environmental Sciences, University of Illinois, Urbana Champaign, 354 State Highway 145 N, Simpson, IL, 62985, USA
- Prairie Research Institute, Illinois Natural History Survey, University of Illinois, Urbana Champaign, 1816 S Oak, Champaign, IL, 61820, USA
| | - R.L. Smith
- Department of Pathobiology, University of Illinois, Urbana Champaign, 2001 S Lincoln Ave, Urbana, IL, 61802, USA
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Xi D, Garg K, Lambert JS, Rajput-Ray M, Madigan A, Avramovic G, Gilbert L. Scrutinizing Clinical Biomarkers in a Large Cohort of Patients with Lyme Disease and Other Tick-Borne Infections. Microorganisms 2024; 12:380. [PMID: 38399784 PMCID: PMC10893018 DOI: 10.3390/microorganisms12020380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024] Open
Abstract
Standard clinical markers can improve tick-borne infection (TBI) diagnoses. We investigated immune and other clinical biomarkers in 110 patients clinically diagnosed with TBIs before (T0) and after antibiotic treatment (T2). At T0, both the initial observation group and patients without seroconversion for tick-borne pathogens exhibited notably low percentages and counts of CD3 percentage (CD3%), CD3+ cells, CD8+ suppressors, CD4 percentage (CD4%), and CD4+ helper cells, with the latter group showing reductions in CD3%, CD3+, and CD8+ counts in approximately 15-22% of cases. Following treatment at the T2 follow-up, patients typically experienced enhancements in their previously low CD3%, CD3+ counts, CD4%, and CD4+ counts; however, there was no notable progress in their low CD8+ counts, and a higher number of patients presented with insufficient transferrin levels. Moreover, among those with negative serology for tick-borne infections, there was an improvement in low CD3% and CD3+ counts, which was more pronounced in patients with deficient transferrin amounts. Among those with CD57+ (n = 37) and CD19+ (n = 101) lymphocyte analysis, 59.46% of patients had a low CD57+ count, 14.85% had a low CD19 count, and 36.63% had a low CD19 percentage (CD19%). Similar findings were observed concerning low CD57+, CD19+, and CD19% markers for negative TBI serology patients. Overall, this study demonstrates that routine standard clinical markers could assist in a TBI diagnosis.
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Affiliation(s)
- David Xi
- School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland; (D.X.); (J.S.L.); (G.A.)
| | | | - John S. Lambert
- School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland; (D.X.); (J.S.L.); (G.A.)
- Infectious Diseases Department, Mater Misericordiae University Hospital, D07 R2WY Dublin, Ireland
- Infectious Diseases Department, The Rotunda Hospital, D01 P5W9 Dublin, Ireland
| | - Minha Rajput-Ray
- Curaidh Clinic: Innovative Solutions for Pain, Chronic Disease and Work Health, Perth PH2 8EH, UK;
| | - Anne Madigan
- School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland; (D.X.); (J.S.L.); (G.A.)
| | - Gordana Avramovic
- School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland; (D.X.); (J.S.L.); (G.A.)
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18
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Ndjangangoye NK, Nzassi PM, Bangueboussa F, Ntigui CNMM, Kouna LC, Moukodoum ND, Atiga NC, Okouga AP, Ontoua SS, Lekana-Douki JB, Oyegue-Liabagui SL. High prevalence of asymptomatic Anaplasma spp. infection in school-aged children in southeastern Gabon. Int J Infect Dis 2024; 139:192-194. [PMID: 38065316 DOI: 10.1016/j.ijid.2023.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 11/06/2023] [Accepted: 12/04/2023] [Indexed: 01/12/2024] Open
Abstract
OBJECTIVES The objective of this study was to evaluate the detection rates of asymptomatic Anaplasma spp. and Ehrlichia spp. infections in children in southeastern Gabon. METHODS We conducted a cross-sectional study among school-aged children in southeastern Gabon between May and June 2021. Blood samples were collected. Anaplasmataceae, Anaplasma spp., and Ehrlichia spp. were detected by microscopy and polymerase chain reaction. RESULTS Of the 452 blood samples collected, 57.5% (n/N=260/452) of the samples were positive for Anaplasma spp. and/or Ehrlichia spp. by microscopy, 86.9% (n/N=393/452) of the samples were positive for both Anaplasmataceae and Anaplasma spp., and none of the samples were found positive for Ehrlichia spp. PCR was more sensitive and specific than microscopy for detection of Anaplasma spp.. CONCLUSIONS In our study, a significant number of positive blood samples for Anaplasma spp. were found in school-aged children in southeastern Gabon. Further studies are needed to determine the prevalence of different species of Anaplasma, their pathogenicity, and their transmission patterns.
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Affiliation(s)
- Nal Kennedy Ndjangangoye
- Unité Évolution, Épidémiologie et Résistances Parasitaires (UNEREEP), CIRMF, Franceville, Gabon.
| | - Patrice Makouloutou Nzassi
- Département de Biologie et Écologie Animale, Institut de Recherche en Écologie Tropicale (IRET/CENAREST), Libreville, Gabon; Unité de Recherche en Écologie de la Santé, CIRMF, Franceville, Gabon
| | | | - Chérone Nancy Mbani Mpega Ntigui
- Unité Évolution, Épidémiologie et Résistances Parasitaires (UNEREEP), CIRMF, Franceville, Gabon; École Doctorale Régionale d'Afrique en infectiologie Tropicale (ECODRAC), Université des Sciences et Techniques de Masuku (USTM), Franceville, Gabon
| | - Lady Charlene Kouna
- Unité Évolution, Épidémiologie et Résistances Parasitaires (UNEREEP), CIRMF, Franceville, Gabon
| | | | - Nick Chenis Atiga
- Unité Évolution, Épidémiologie et Résistances Parasitaires (UNEREEP), CIRMF, Franceville, Gabon
| | - Alain Prince Okouga
- Unité Évolution, Épidémiologie et Résistances Parasitaires (UNEREEP), CIRMF, Franceville, Gabon
| | - Steede Seinnat Ontoua
- Unité Évolution, Épidémiologie et Résistances Parasitaires (UNEREEP), CIRMF, Franceville, Gabon; École Doctorale Régionale d'Afrique en infectiologie Tropicale (ECODRAC), Université des Sciences et Techniques de Masuku (USTM), Franceville, Gabon
| | - Jean-Bernard Lekana-Douki
- Unité Évolution, Épidémiologie et Résistances Parasitaires (UNEREEP), CIRMF, Franceville, Gabon; Département de Parasitologie-Mycologie, Université des Sciences de la Santé (USS), Libreville, Gabon
| | - Sandrine Lydie Oyegue-Liabagui
- Unité Évolution, Épidémiologie et Résistances Parasitaires (UNEREEP), CIRMF, Franceville, Gabon; Département de Biologie, Faculté des Sciences, Université des Sciences et Techniques de Masuku (USTM), Franceville, Gabon
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19
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Wang D, Meng F, Zhang X, Xin Z, Wei L. Distribution characteristics and influencing factors of Haemaphysalis longicornis around goat sheds in Jinan city, East China. EXPERIMENTAL & APPLIED ACAROLOGY 2024; 92:297-305. [PMID: 38351236 DOI: 10.1007/s10493-023-00898-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 12/30/2023] [Indexed: 03/12/2024]
Abstract
As one of the most important disease vectors worldwide, ticks can transmit a number of pathogenic organisms to humans and domestic animals and cause a variety of important natural focal diseases and zoonoses. Domestic livestock play a vital role in the dispersal of ticks from the field environment to the human settlement, contributing to the prevalence of tick-borne diseases. Identification of the tick control region could contribute a vital role in strategic planning and cost-effective tick control measures. However, little is known about the spatial distribution characteristics of ticks around livestock sheds, which will lead to abusage and overuse of insecticides. Therefore, this study aimed to explore spatial distribution characteristics and correlation factors of ticks around goat sheds. A total of 3898 ticks were collected from eight goat sheds from April to June in Jinan city. All the sampled ticks belonged to the same species, namely Haemaphysalis longicornis, and 88.8% of them were nymphs. A significant positive correlation was noted between free-living ticks and parasitic ticks (r = 0.411, P < 0.001). However, there was a significant negative correlation between number of free-living ticks and distance from the goat sheds (r = -0.622, P < 0.001). Within 20 m from the goat sheds, 2211 ticks were collected respectively, representing 56.7% of the total free-living ticks. At a distance of 30 m, 57.6% decline in the tick density was found with a significant difference (q = 5.534, P < 0.001). In conclusion, focusing control efforts near the goat sheds should be recommend for tick prevention and control.
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Affiliation(s)
- Dong Wang
- Department of Vector Biology and Control, Jinan Center for Disease Control and Prevention, No. 2, Weiliu Road, Jinan, Shandong, 250021, P.R. China
| | - Fange Meng
- Department of Vector Biology and Control, Jinan Center for Disease Control and Prevention, No. 2, Weiliu Road, Jinan, Shandong, 250021, P.R. China
| | - Xiao Zhang
- Department of Vector Biology and Control, Jinan Center for Disease Control and Prevention, No. 2, Weiliu Road, Jinan, Shandong, 250021, P.R. China
| | - Zheng Xin
- Department of Vector Biology and Control, Jinan Center for Disease Control and Prevention, No. 2, Weiliu Road, Jinan, Shandong, 250021, P.R. China
| | - Ling Wei
- Department of Vector Biology and Control, Jinan Center for Disease Control and Prevention, No. 2, Weiliu Road, Jinan, Shandong, 250021, P.R. China.
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20
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Nepveu-Traversy ME, Fausther-Bovendo H, Babuadze G(G. Human Tick-Borne Diseases and Advances in Anti-Tick Vaccine Approaches: A Comprehensive Review. Vaccines (Basel) 2024; 12:141. [PMID: 38400125 PMCID: PMC10891567 DOI: 10.3390/vaccines12020141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 01/18/2024] [Accepted: 01/23/2024] [Indexed: 02/25/2024] Open
Abstract
This comprehensive review explores the field of anti-tick vaccines, addressing their significance in combating tick-borne diseases of public health concern. The main objectives are to provide a brief epidemiology of diseases affecting humans and a thorough understanding of tick biology, traditional tick control methods, the development and mechanisms of anti-tick vaccines, their efficacy in field applications, associated challenges, and future prospects. Tick-borne diseases (TBDs) pose a significant and escalating threat to global health and the livestock industries due to the widespread distribution of ticks and the multitude of pathogens they transmit. Traditional tick control methods, such as acaricides and repellents, have limitations, including environmental concerns and the emergence of tick resistance. Anti-tick vaccines offer a promising alternative by targeting specific tick proteins crucial for feeding and pathogen transmission. Developing vaccines with antigens based on these essential proteins is likely to disrupt these processes. Indeed, anti-tick vaccines have shown efficacy in laboratory and field trials successfully implemented in livestock, reducing the prevalence of TBDs. However, some challenges still remain, including vaccine efficacy on different hosts, polymorphisms in ticks of the same species, and the economic considerations of adopting large-scale vaccine strategies. Emerging technologies and approaches hold promise for improving anti-tick vaccine development and expanding their impact on public health and agriculture.
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Affiliation(s)
| | - Hugues Fausther-Bovendo
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX 75550, USA;
| | - George (Giorgi) Babuadze
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX 75550, USA;
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21
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Guillot C, Aenishaenslin C, Acheson ES, Koffi J, Bouchard C, Leighton PA. Spatial multi-criteria decision analysis for the selection of sentinel regions in tick-borne disease surveillance. BMC Public Health 2024; 24:294. [PMID: 38267914 PMCID: PMC10809750 DOI: 10.1186/s12889-024-17684-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 01/05/2024] [Indexed: 01/26/2024] Open
Abstract
BACKGROUND The implementation of cost-effective surveillance systems is essential for tracking the emerging risk of tick-borne diseases. In Canada, where Lyme disease is a growing public health concern, a national sentinel surveillance network was designed to follow the epidemiological portrait of this tick-borne disease across the country. The surveillance network consists of sentinel regions, with active drag sampling carried out annually in all regions to assess the density of Ixodes spp. ticks and prevalence of various tick-borne pathogens in the tick population. The aim of the present study was to prioritize sentinel regions by integrating different spatial criteria relevant to the surveillance goals. METHODS We used spatially-explicit multi-criteria decision analyses (MCDA) to map priority areas for surveillance across Canada, and to evaluate different scenarios using sensitivity analyses. Results were shared with stakeholders to support their decision making for the selection of priority areas to survey during active surveillance activities. RESULTS Weights attributed to criteria by decision-makers were overall consistent. Sensitivity analyses showed that the population criterion had the most impact on rankings. Thirty-seven sentinel regions were identified across Canada using this systematic and transparent approach. CONCLUSION This novel application of spatial MCDA to surveillance network design favors inclusivity of nationwide partners. We propose that such an approach can support the standardized planning of spatial design of sentinel surveillance not only for vector-borne disease BDs, but more broadly for infectious disease surveillance where spatial design is an important component.
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Affiliation(s)
- C Guillot
- Groupe de recherche en épidémiologie des zoonoses et santé publique (GREZOSP), Department of Pathology and Microbiology, Faculty of Veterinary Medicine, University of Montreal, Montreal, Quebec, Canada.
- Faculty of Medicine and Health Sciences, University of Sherbrooke, Sherbrooke, Quebec, Canada.
- Centre de recherche en santé publique (CRESP) de l'Université de Montréal et du CIUSSS du Centre-Sud-de-l'Île-de-Montréal, University of Montreal, Montreal, Quebec, Canada.
| | - C Aenishaenslin
- Groupe de recherche en épidémiologie des zoonoses et santé publique (GREZOSP), Department of Pathology and Microbiology, Faculty of Veterinary Medicine, University of Montreal, Montreal, Quebec, Canada
- Centre de recherche en santé publique (CRESP) de l'Université de Montréal et du CIUSSS du Centre-Sud-de-l'Île-de-Montréal, University of Montreal, Montreal, Quebec, Canada
| | - E S Acheson
- Groupe de recherche en épidémiologie des zoonoses et santé publique (GREZOSP), Department of Pathology and Microbiology, Faculty of Veterinary Medicine, University of Montreal, Montreal, Quebec, Canada
- Public Health Risk Sciences Divisions, National Microbiology Laboratory, Public Health Agency of Canada, Saint-Hyacinthe, Quebec, Canada
| | - J Koffi
- Groupe de recherche en épidémiologie des zoonoses et santé publique (GREZOSP), Department of Pathology and Microbiology, Faculty of Veterinary Medicine, University of Montreal, Montreal, Quebec, Canada
- Policy Integration and Zoonoses Division, Centre for Food-borne, Environmental and Zoonotic Infectious Diseases, Public Health Agency of Canada, Saint-Hyacinthe, Quebec, Canada
| | - C Bouchard
- Groupe de recherche en épidémiologie des zoonoses et santé publique (GREZOSP), Department of Pathology and Microbiology, Faculty of Veterinary Medicine, University of Montreal, Montreal, Quebec, Canada
- Public Health Risk Sciences Divisions, National Microbiology Laboratory, Public Health Agency of Canada, Saint-Hyacinthe, Quebec, Canada
| | - P A Leighton
- Groupe de recherche en épidémiologie des zoonoses et santé publique (GREZOSP), Department of Pathology and Microbiology, Faculty of Veterinary Medicine, University of Montreal, Montreal, Quebec, Canada
- Centre de recherche en santé publique (CRESP) de l'Université de Montréal et du CIUSSS du Centre-Sud-de-l'Île-de-Montréal, University of Montreal, Montreal, Quebec, Canada
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22
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Diakou A. Biting Back: Advances in Fighting Ticks and Understanding Tick-Borne Pathogens. Pathogens 2024; 13:73. [PMID: 38251380 PMCID: PMC10819772 DOI: 10.3390/pathogens13010073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 01/11/2024] [Indexed: 01/23/2024] Open
Abstract
Ticks are blood-feeding arthropods and obligate ectoparasites of virtually all animal species (except fish) and humans [...].
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Affiliation(s)
- Anastasia Diakou
- Laboratory of Parasitology and Parasitic Diseases, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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23
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Offei Addo S, Essah Bentil R, Olivia Ama Baako B, Ansah-Owusu J, Nii Laryea Tawiah-Mensah C, Behene E, Asoala V, Dunford JC, Asiedu Larbi J, Kweku Baidoo P, David Wilson M, Diclaro JW, Dadzie SK. Spatial and Seasonal Patterns of Tick Infestations in Kassena-Nankana Livestock. Vet Med Int 2024; 2024:8889907. [PMID: 38234318 PMCID: PMC10791324 DOI: 10.1155/2024/8889907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/07/2023] [Accepted: 12/09/2023] [Indexed: 01/19/2024] Open
Abstract
The ability of ticks to adapt to different ecological zones, coupled with the spread of infectious pathogens negatively affects livestock production and thus, there is a need for better control strategies. However, control measures within a geographical region can only be effective if there is available information on tick population dynamics and ecology. This study focused on ticks infesting livestock in the Kassena-Nankana Districts of the Upper East Region of Ghana. The ticks were morphologically identified, variables such as season, animal host, and predilection sites were recorded, and the data were analyzed using STATA version 13. Out of 448 livestock examined, tick infestation in cattle was (78.60%), followed by sheep (25%) and goats (5.88%). A total of 1,550 ticks including nymphs (303) and adults (1,247) were collected. Adult ticks were found to be significantly associated with season (p < 0.001), with a high burden in the wet season. The nymph burden and body parts of livestock hosts were significantly associated with more nymphs collected from male animals than females (p < 0.001). Three genera of ticks, Amblyomma (62.97%), Hyalomma (18.71%), and Rhipicephalus (18.32%) were morphologically identified with the most predominant tick species recorded as Amblyomma variegatum (62.97%). Matured A. variegatum was sampled primarily in the wet season with their predilection site as the udder/scrotum (p < 0.001). However, adult Hyalomma truncatum was observed to have a significant association with the anal region (p < 0.001). Findings from this study are essential for formulating tick control measures to prevent the spread of infectious pathogens.
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Affiliation(s)
- Seth Offei Addo
- Parasitology Department, Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Accra, Ghana
- Department of Theoretical and Applied Biology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Ronald Essah Bentil
- Parasitology Department, Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Accra, Ghana
| | | | - Jane Ansah-Owusu
- Parasitology Department, Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Accra, Ghana
| | | | - Eric Behene
- Parasitology Department, Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Accra, Ghana
| | - Victor Asoala
- Navrongo Health Research Centre, Navrongo, Upper East Region, Ghana
| | - James C. Dunford
- Navy Entomology Center of Excellence, Jacksonville, Florida, USA
- Uniformed Services University of Health Sciences, Bethesda, Maryland, USA
| | - John Asiedu Larbi
- Department of Theoretical and Applied Biology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Philip Kweku Baidoo
- Department of Theoretical and Applied Biology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Michael David Wilson
- Parasitology Department, Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Accra, Ghana
| | - Joseph W. Diclaro
- Navy Entomology Center of Excellence, Centers for Disease Control and Prevention Detachment, Atlanta, Georgia, USA
| | - Samuel K. Dadzie
- Parasitology Department, Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Accra, Ghana
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24
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Melis S, Batisti Biffignandi G, Olivieri E, Galon C, Vicari N, Prati P, Moutailler S, Sassera D, Castelli M. High-throughput screening of pathogens in Ixodes ricinus removed from hosts in Lombardy, northern Italy. Ticks Tick Borne Dis 2024; 15:102285. [PMID: 38035456 DOI: 10.1016/j.ttbdis.2023.102285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 11/07/2023] [Accepted: 11/15/2023] [Indexed: 12/02/2023]
Abstract
Ticks are important vectors of many pathogens in Europe, where the most impactful species is Ixodes ricinus. Recently, the geographical distribution of this tick species has been expanding, resulting in an increased risk of human exposure to tick bites. With the present study, we aimed to screen 350 I. ricinus specimens collected from humans and wild animals (mainly ungulates), to have a broader understanding of the tick-borne pathogens circulating in the Lombardy region, in northern Italy. To do so, we took advantage of a high-throughput real-time microfluidic PCR approach to screen ticks in a cost-effective and time-saving manner. Molecular analysis of the dataset revealed the presence of four genera of bacteria and two genera of protozoa: in ungulates, 77 % of collected ticks carried Anaplasma phagocytophilum, while the most common pathogen species in ticks removed from humans were those belonging to Borrelia burgdorferi sensu lato group (7.6 %). We also detected other pathogenic microorganisms, such as Rickettisa monacensis, Rickettsia helvetica, Neoehrlichia mikurensis, Babesia venatorum, and Hepatozoon martis. Besides, we also reported the presence of the pathogenic agent Borrelia miyamotoi in the area (1.4 % overall). The most common dual co-infection detected in the same tick individual involved A. phagocytophilum and Rickettsia spp. Our study provided evidence of the circulation of different tick-borne pathogens in a densely populated region in Italy.
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Affiliation(s)
- Sophie Melis
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy
| | | | - Emanuela Olivieri
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna, Pavia, Italy
| | - Clémence Galon
- ANSES, INRAE, Ecole Nationale Vétérinaire d'Alfort, UMR BIPAR, Laboratoire de Santé Animale, Maisons-Alfort, F-94700, France
| | - Nadia Vicari
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna, Pavia, Italy
| | - Paola Prati
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna, Pavia, Italy
| | - Sara Moutailler
- ANSES, INRAE, Ecole Nationale Vétérinaire d'Alfort, UMR BIPAR, Laboratoire de Santé Animale, Maisons-Alfort, F-94700, France
| | - Davide Sassera
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy; Fondazione IRCCS Policlinico San Matteo Pavia Italy
| | - Michele Castelli
- Department of Biology and Biotechnology, University of Pavia, Pavia, Italy.
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25
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Byun HR, Rieu MS, Han SW, Ji SR, Nam HY, Seo S, Choi CY, Linh BK, Thanh HL, Kaewthamasorn M, Sahara A, Galay RL, Wang SL, Erdenechimeg T, Batbayar N, Matsui S, Kawaji N, Moulin A, Yu YT, Avais M, Chae JS. Ixodid ticks from wild and domestic animals in East and Central Asian flyways. Acta Trop 2024; 249:107091. [PMID: 38065376 DOI: 10.1016/j.actatropica.2023.107091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/04/2023] [Accepted: 12/05/2023] [Indexed: 12/18/2023]
Abstract
Tick-borne diseases have a significant impact on human and animal populations, posing an increasing threat to public health, particularly in the context of climate change. Along with the various natural hosts of ticks, birds play a notable role in transmitting ticks and tick-borne pathogens, indicating the importance of monitoring flyways and establishing a cooperative network for comprehensive surveillance and to collect diverse tick samples across various regions. This study aimed to develop an international network for surveillance of disease, collection of sufficient tick samples, and overall identification of the geographical distribution of host and ticks in Asian regions, especially in 11 countries on East Asian and Central Asian flyways. Ticks were collected from wild animals, domestic animals, and vegetation to identify the differences between Ixodid ticks and understand tick distribution. We collected a total 6,624 of ticks from 11 collaborating Asian countries, the Republic of Korea (ROK), Japan, Thailand, Philippines, Indonesia, Cambodia, Vietnam, Taiwan, Hong Kong, Mongolia and Pakistan. We identified 17 host animals and 47 species of both residential and migratory birds. Ticks from birds collected from four countries (ROK, Japan, Hong Kong and Mongolia) belonged to two genera, Haemaphysalis and Ixodes, including Haemaphysalis (H.) longicornis, H. flava, H. concinna, H. hystricis, H. formosensis, Ixodes (I.) nipponensis and I. persulcatus. The potential of migratory birds to cross ecological barriers with ticks and tick-borne diseases indicated the need for further investigations to understand the migration of birds as potential vectors and the new influx of zoonotic diseases along migratory bird flyways. This study suggests the potential risk of spreading tick-borne diseases through birds, thus highlighting the importance of international cooperative networking.
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Affiliation(s)
- Hye-Ryung Byun
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Center, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Mi-Sun Rieu
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Center, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Sun-Woo Han
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Center, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Seong-Ryeong Ji
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Center, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Hyun-Young Nam
- School of Biological Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Seulgi Seo
- Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Chang-Yong Choi
- Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea; Department of Agriculture, Forestry, and Bioresources, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Bui Khanh Linh
- Vietnam National University of Agriculture, Trau Quy, Gia Lam, Ha Noi, Vietnam
| | - Hien Le Thanh
- Department of Infectious Diseases and Veterinary Public Health, Faculty of Animal Science and Veterinary Medicine, Nong Lam University Ho Chi Minh, Vietnam
| | - Morakot Kaewthamasorn
- Veterinary Parasitology Research Unit, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Ana Sahara
- Department of Parasitology, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Remil L Galay
- Department of Veterinary Paraclinical Sciences, College of Veterinary Medicine, University of the Philippines Los Baños, Laguna 4031, Philippines
| | - Shang-Lin Wang
- Institute of Veterinary Clinical Sciences, School of Veterinary Medicine, National Taiwan University, No.1 Sec.4, Roosevelt Rd., Taipei 10617, Taiwan
| | | | - Nyambayar Batbayar
- Wildlife Science and Conservation Center of Mongolia, Ulaanbaatar 14210, Mongolia
| | - Shin Matsui
- School of Biological Sciences, Tokai University, Hokkaido 005-8601, Japan
| | - Noritomo Kawaji
- Hokkaido Research Center, Forestry and Forest Products Research Institute, Sapporo 062-8516, Japan
| | - Anna Moulin
- The Hong Kong Bird Watching Society, Kowloon, Hong Kong
| | - Yat-Tung Yu
- The Hong Kong Bird Watching Society, Kowloon, Hong Kong
| | - Muhammad Avais
- Department of Veterinary Medicine, Faculty of Veterinary Science, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan
| | - Joon-Seok Chae
- Laboratory of Veterinary Internal Medicine, BK21 FOUR Future Veterinary Medicine Leading Education and Research Center, Research Institute for Veterinary Science and College of Veterinary Medicine, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea.
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26
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Cui Y, Matias J, Tang X, Cibichakravarthy B, DePonte K, Wu MJ, Fikrig E. Metabolomic changes associated with acquired resistance to Ixodes scapularis. Ticks Tick Borne Dis 2024; 15:102279. [PMID: 37972499 DOI: 10.1016/j.ttbdis.2023.102279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/30/2023] [Accepted: 10/31/2023] [Indexed: 11/19/2023]
Abstract
Guinea pigs repeatedly exposed to Ixodes scapularis develop acquired resistance to the ticks (ATR). The molecular mechanisms of ATR have not been fully elucidated, and partially involves immune responses to proteins in tick saliva. In this study, we examined the metabolome of sera of guinea pigs during the development of ATR. Induction of components of the tyrosine metabolic pathway, including hydroxyphenyllactic acid (HPLA), were associated with ATR. We therefore administered HPLA to mice, an animal that does not develop ATR, and exposed the animals to I. scapularis. We also administered nitisinone, a known inhibitor of tyrosine degradation, to another group of mice. The mortality of I. scapularis that fed on mice given HPLA or nitisinone was 26 % and 72 % respectively, compared with 2 % mortality among ticks that fed on control animals. These data indicate that tick bites alter the guinea pig metabolome, and that the tyrosine metabolism pathway can potentially be targeted for I. scapularis control.
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Affiliation(s)
- Yingjun Cui
- Section of Infectious Diseases, Department of Internal Medicine, Yale School of Medicine, Room 169, 300 Cedar Street, New Haven, CT 06520-8031, USA.
| | - Jaqueline Matias
- Section of Infectious Diseases, Department of Internal Medicine, Yale School of Medicine, Room 169, 300 Cedar Street, New Haven, CT 06520-8031, USA
| | - Xiaotian Tang
- Section of Infectious Diseases, Department of Internal Medicine, Yale School of Medicine, Room 169, 300 Cedar Street, New Haven, CT 06520-8031, USA
| | - Balasubramanian Cibichakravarthy
- Section of Infectious Diseases, Department of Internal Medicine, Yale School of Medicine, Room 169, 300 Cedar Street, New Haven, CT 06520-8031, USA
| | - Kathleen DePonte
- Section of Infectious Diseases, Department of Internal Medicine, Yale School of Medicine, Room 169, 300 Cedar Street, New Haven, CT 06520-8031, USA
| | - Ming-Jie Wu
- Section of Infectious Diseases, Department of Internal Medicine, Yale School of Medicine, Room 169, 300 Cedar Street, New Haven, CT 06520-8031, USA
| | - Erol Fikrig
- Section of Infectious Diseases, Department of Internal Medicine, Yale School of Medicine, Room 169, 300 Cedar Street, New Haven, CT 06520-8031, USA.
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27
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Lyu B, Li J, Niemeyer B, Anderson D, Beerntsen B, Song Q. Identification, structural modeling, gene expression analysis and RNAi effect of putative phospholipase A 2 in the lone star tick Amblyomma americanum. Ticks Tick Borne Dis 2024; 15:102256. [PMID: 37734164 DOI: 10.1016/j.ttbdis.2023.102256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 08/15/2023] [Accepted: 09/05/2023] [Indexed: 09/23/2023]
Abstract
Amblyomma americanum, also known as the lone star tick, is a small arachnid that feeds on blood and can spread disease to humans and other animals. Despite the overlapped ecological niche, geographic distribution, and host selection, there is no proof that A. americanum transmits the pathogen Borrelia burgdorferi that causes Lyme disease. Studies have shown that phospholipase A2 (PLA2) may act as a tool to eliminate B. burgdorferi, but particular PLA2 genes in A. americanum have not been identified and functionally characterized. Using the de novo sequencing method, we identified 42 putative A. americanum PLA2 (pAaPLA2) homologs in the present study, of which three pAaPLA2 had calcium binding sites and canonical histidine catalytic sites. Then, we determined phylogenetic relationships, sequence alignments, and conserved protein motifs of these pAaPLA2s. Protein structural analysis demonstrated that pAaPLA2s primarily consisted of α-helices, β-sheets, and random coils. These genes were predicted to be engaged in the phospholipid metabolic process, arachidonic acid secretion, and PLA2 activity by functional annotation analysis. A transcriptional factor (Bgb) was discovered that interacted with pAaPLA2 proteins that may have unrecognized roles in regulating neuronal development. Based on the RNA-seq data, we surveyed expression profiles of key pAaPLA2-related genes to reveal putative modulatory networks of these genes. RNAi knockdown of pAaPLA2_1, a dominant isoform in A. americanum, led to decreased bacterial inhibition ability, suggesting pAaPLA2 may play an important role in mediating immune responses. Collectively, this study provides essential evidence of the identification, gene structure, phylogeny, and expression analysis of pAaPLA2 genes in A. americanum, and offers a deeper understanding of the putative borreliacidal roles in the lone star tick.
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Affiliation(s)
- Bo Lyu
- Division of Plant Science and Technology, University of Missouri, Columbia, MO 65211, USA
| | - Jingjing Li
- Division of Plant Science and Technology, University of Missouri, Columbia, MO 65211, USA
| | - Brigid Niemeyer
- Division of Plant Science and Technology, University of Missouri, Columbia, MO 65211, USA
| | - Deborah Anderson
- Department of Veterinary Pathobiology, University of Missouri, Columbia, MO, USA
| | - Brenda Beerntsen
- Division of Plant Science and Technology, University of Missouri, Columbia, MO 65211, USA; Department of Veterinary Pathobiology, University of Missouri, Columbia, MO, USA
| | - Qisheng Song
- Division of Plant Science and Technology, University of Missouri, Columbia, MO 65211, USA.
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28
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Siegel EL, Xu G, Li AY, Pearson P, D’hers S, Elman N, Mather TN, Rich SM. Ixodes scapularis Is the Most Susceptible of the Three Canonical Human-Biting Tick Species of North America to Repellent and Acaricidal Effects of the Natural Sesquiterpene, (+)-Nootkatone. INSECTS 2023; 15:8. [PMID: 38249014 PMCID: PMC10816182 DOI: 10.3390/insects15010008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/18/2023] [Accepted: 12/20/2023] [Indexed: 01/23/2024]
Abstract
Ticks are vectors of many human and animal zoonotic disease-causing agents causing significant global health and economic strain. Repellents and acaricides are integral to the human capacity for personal protection from tick bites. Nootkatone, a naturally occurring sesquiterpene found in the Alaskan cedar tree, grapefruit, and other sources, has been documented to be a potent acaricide. Research has also noted repellent effects against some tick species. In this study, our aim was to investigate the effect of synthetic, high-purity (+)-nootkatone on adult Ixodes scapularis, Dermacentor variabilis, and Amblyomma americanum ticks in an in vitro, vertical filter paper bioassay. (+)-nootkatone showed compelling tick repellency, but median effective concentrations (EC50) significantly differed among species. Ixodes scapularis were repelled at very low concentrations (EC50 = 0.87 ± 0.05 µg/cm2). Higher concentrations were required to repel D. variabilis (EC50 = 252 ± 12 µg/cm2) and A. americanum (EC50 = 2313 ± 179 µg/cm2). Significant post-exposure mortality, assessed 24 h after repellency trials, was also observed in I. scapularis but was absent entirely in D. variabilis and A. americanum. These tests demonstrate that nootkatone has a promising dual-action personal protection capacity against adult I. scapularis ticks, warranting further investigation in more natural environments and in the presence of host cues.
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Affiliation(s)
- Eric L. Siegel
- Laboratory of Medical Zoology, Department of Microbiology, University of Massachusetts, Amherst, MA 01003, USA; (E.L.S.); (P.P.)
| | - Guang Xu
- Laboratory of Medical Zoology, Department of Microbiology, University of Massachusetts, Amherst, MA 01003, USA; (E.L.S.); (P.P.)
| | - Andrew Y. Li
- United States Department of Agriculture, Agricultural Research Service, Invasive Insect Biocontrol and Behavior Laboratory, Beltsville, MD 20704, USA;
| | - Patrick Pearson
- Laboratory of Medical Zoology, Department of Microbiology, University of Massachusetts, Amherst, MA 01003, USA; (E.L.S.); (P.P.)
| | - Sebastián D’hers
- Computational Mechanics Center, Instituto Tecnológico de Buenos Aires (ITBA), Ciudad Autónoma de Buenos Aires C1106ACD, Argentina;
| | - Noel Elman
- GearJump Technologies, Limited Liability Company, Brookline, MA 02446, USA;
| | - Thomas N. Mather
- Center for Vector-Borne Disease, University of Rhode Island, Kingston, RI 02881, USA;
| | - Stephen M. Rich
- Laboratory of Medical Zoology, Department of Microbiology, University of Massachusetts, Amherst, MA 01003, USA; (E.L.S.); (P.P.)
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Zhang L, Han J, Zhou Q, He Z, Sun SW, Li R, Li RS, Zhang WK, Wang YH, Xu LL, Lu ZH, Shao ZJ. Differential microbial composition in parasitic vs. questing ticks based on 16S next-generation sequencing. Front Microbiol 2023; 14:1264939. [PMID: 38192286 PMCID: PMC10773790 DOI: 10.3389/fmicb.2023.1264939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 09/12/2023] [Indexed: 01/10/2024] Open
Abstract
Introduction As tick-borne diseases rise to become the second most prevalent arthropod-transmitted disease globally, the increasing investigations focus on ticks correspondingly. Factors contributed to this increase include anthropogenic influences, changes in vertebrate faunal composition, social-recreational shifts, and climatic variation. Employing the 16S gene sequence method in next-generation sequencing (NGS) allows comprehensive pathogen identification in samples, facilitating the development of refined approaches to tick research omnidirectionally. Methods In our survey, we compared the microbial richness and biological diversity of ticks in Wuwei City, Gansu province, differentiating between questing ticks found in grass and parasitic ticks collected from sheep based on 16S NGS method. Results The results show Rickettsia, Coxiella, and Francisella were detected in all 50 Dermacentor nuttalli samples, suggesting that the co-infection may be linked to specific symbiotic bacteria in ticks. Our findings reveal significant differences in the composition and diversity of microorganisms, with the Friedmanniella and Bordetella genera existing more prevalent in parasitic ticks than in questing ticks (p < 0.05). Additionally, the network analysis demonstrates that the interactions among bacterial genera can be either promotive or inhibitive in ticks exhibiting different lifestyles with the correlation index |r| > 0.6. For instance, Francisella restrains the development of 10 other bacteria in parasitic ticks, whereas Phyllobacterium and Arthrobacter enhance colonization across all tick species. Discussion By leveraging NGS techniques, our study reveals a high degree of species and phylogenetic diversity within the tick microbiome. It further highlights the potential to investigate the interplay between bacterial genera in both parasitic and questing ticks residing in identical habitat environments.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Zhen-Hua Lu
- Department of Epidemiology, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University, Xi’an, Shaanxi, China
| | - Zhong-Jun Shao
- Department of Epidemiology, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University, Xi’an, Shaanxi, China
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Chavarría-Bencomo IV, Nevárez-Moorillón GV, Espino-Solís GP, Adame-Gallegos JR. Antibiotic resistance in tick-borne bacteria: A One Health approach perspective. J Infect Public Health 2023; 16 Suppl 1:153-162. [PMID: 37945496 DOI: 10.1016/j.jiph.2023.10.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 10/24/2023] [Accepted: 10/26/2023] [Indexed: 11/12/2023] Open
Abstract
The emergence and re-emergence of tick-borne bacteria (TBB) as a public health problem raises the uncertainty of antibiotic resistance in these pathogens, which could be dispersed to other pathogens. The impact of global warming has led to the emergence of pathogenic TBB in areas where they were not previously present and is another risk that must be taken into account under the One Health guides. This review aimed to analyze the existing information regarding antibiotic-resistant TBB and antibiotic-resistance genes (ARG) present in the tick microbiome, considering the potential to be transmitted to pathogenic microorganisms. Several Ehrlichia species have been reported to exhibit natural resistance to fluoroquinolones and typhus group Rickettsiae are naturally susceptible to erythromycin. TBB have a lower risk of acquiring ARG due to their natural habitat, but there is still a probability of acquiring them; furthermore, studies of these pathogens are limited. Pathogenic and commensal bacteria coexist within the tick microbiome along with ARGs for antibiotic deactivation, cellular protection, and efflux pumps; these ARGs confer resistance to antibiotics such as aminoglycosides, beta-lactamase, diaminopyrimidines, fluoroquinolones, glycopeptides, sulfonamides, and tetracyclines. Although with low probability, TBB can be a reservoir of ARGs.
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Affiliation(s)
- Inés Valeria Chavarría-Bencomo
- Facultad de Ciencias Químicas. Universidad Autónoma de Chihuahua, Circuito Universitario s/n. Campus Universitario II., 31125 Chihuahua, Mexico
| | - Guadalupe Virginia Nevárez-Moorillón
- Facultad de Ciencias Químicas. Universidad Autónoma de Chihuahua, Circuito Universitario s/n. Campus Universitario II., 31125 Chihuahua, Mexico.
| | - Gerardo Pavel Espino-Solís
- Laboratorio Nacional de Citometría de Flujo. Facultad de Medicina y Ciencias Biomédicas, Universidad Autónoma de Chihuahua, Circuito Universitario s/n. Campus Universitario II., 31125 Chihuahua, Mexico
| | - Jaime Raúl Adame-Gallegos
- Facultad de Ciencias Químicas. Universidad Autónoma de Chihuahua, Circuito Universitario s/n. Campus Universitario II., 31125 Chihuahua, Mexico
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Eleftheriou A, Swisher S, Arruda A, Berrian A, Pesapane R. A survey of knowledge, attitudes, and practices of veterinary professionals regarding ticks and tick-borne diseases: Insights from Ohio, USA. One Health 2023; 17:100592. [PMID: 37404947 PMCID: PMC10316080 DOI: 10.1016/j.onehlt.2023.100592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 06/20/2023] [Accepted: 06/20/2023] [Indexed: 07/06/2023] Open
Abstract
Globally, ticks are becoming more problematic as agricultural pests and vectors of tick-borne diseases (TBDs), many of which are shared between animals and people. Veterinary professionals, including veterinarians and non-veterinarians, are considered a vulnerable group through occupational exposure. To inform educational interventions at the intrapersonal level, a common approach is to first assess knowledge, attitudes, and practices (KAP) of target populations. Thus, our objective was to assess KAP of veterinary professionals in Ohio, a state faced with expanding and invading ticks of medical and veterinary concern. Using a convenience sample, we surveyed 178 veterinary professionals across Ohio with an electronic questionnaire that covered knowledge, attitudes, practices, exposures, demography, education, and surveillance regarding ticks and TBDs. We found that veterinary professionals had cautionary attitudes towards ticks and TBDs and practiced prevention for themselves and their patients, even when tick exposures were infrequently reported. However, veterinary professionals significantly lacked in knowledge regarding tick biology and local TBD epidemiology. Furthermore, we found that knowledge regarding tick biology and attitudes towards ticks and TBDs did not associate with practices. Instead, we found that veterinarian status and routine tick checks of patients were associated with frequent discussions of tick prevention with clients. Our findings emphasize that most tick exposures of veterinary professionals are occupational, and thus prevention should start at the workplace. Cultivating knowledge of veterinary professionals regarding tick biology and local TBD epidemiology may lead to greater motivation and confidence with identifying ticks and testing for TBDs, which may also increase the diagnostic capacity of veterinary professionals for tick and TBD surveillance. Because veterinary professionals typically interact with both animals and their owners, improving their KAP regarding ticks and TBDs, can in turn promote animal, human, and environmental health within a "One Health" context.
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Affiliation(s)
- Andreas Eleftheriou
- College of Veterinary Medicine, Department of Veterinary Preventive Medicine, The Ohio State University, 1920 Coffey Rd, Columbus, OH 43210, USA
| | - Samantha Swisher
- College of Veterinary Medicine, Department of Veterinary Preventive Medicine, The Ohio State University, 1920 Coffey Rd, Columbus, OH 43210, USA
| | - Andreia Arruda
- College of Veterinary Medicine, Department of Veterinary Preventive Medicine, The Ohio State University, 1920 Coffey Rd, Columbus, OH 43210, USA
| | - Amanda Berrian
- College of Veterinary Medicine, Department of Veterinary Preventive Medicine, The Ohio State University, 1920 Coffey Rd, Columbus, OH 43210, USA
| | - Risa Pesapane
- College of Veterinary Medicine, Department of Veterinary Preventive Medicine, The Ohio State University, 1920 Coffey Rd, Columbus, OH 43210, USA
- College of Food, Agricultural, and Environmental Sciences, School of Environment and Natural Resources, The Ohio State University, 2021 Coffey Rd, Columbus, OH 43210, USA
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Ergunay K, Bourke BP, Reinbold-Wasson DD, Nikolich MP, Nelson SP, Caicedo-Quiroga L, Vaydayko N, Kirkitadze G, Chunashvili T, Long LS, Blackburn JK, Cleary NG, Tucker CL, Linton YM. The expanding range of emerging tick-borne viruses in Eastern Europe and the Black Sea Region. Sci Rep 2023; 13:19824. [PMID: 37963929 PMCID: PMC10646066 DOI: 10.1038/s41598-023-46879-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 11/06/2023] [Indexed: 11/16/2023] Open
Abstract
We analysed both pooled and individual tick samples collected from four countries in Eastern Europe and the Black Sea region, using metagenome-based nanopore sequencing (NS) and targeted amplification. Initially, 1337 ticks, belonging to 11 species, were screened in 217 pools. Viruses (21 taxa) and human pathogens were detected in 46.5% and 7.3%, respectively. Tick-borne viral pathogens comprised Tacheng Tick Virus 2 (TTV2, 5.9%), Jingmen Tick Virus (JMTV, 0.9%) and Tacheng Tick Virus 1 (TTV1, 0.4%). An association of tick species with individual virus taxa was observed, with the exception of TTV2, which was observed in both Dermacentor and Haemaphysalis species. Individual ticks from pools with pathogen detection were then further screened by targeted amplification and then NS, which provided extensive genome data and revealed probable pathogen Haseki Tick Virus (HTV, 10.2%). Two distinct TTV2 clades were observed in phylogenetic analysis, one of which included closely related Dermacentor reticulatus Uukuviruses. JMTV detection indicated integrated virus sequences. Overall, we observed an expansion of newly documented pathogenic tick-borne viruses into Europe, with TTV1 being identified on the continent for the first time. These viruses should be included in the diagnostic assessment of symptomatic cases associated with tick bites and vector surveillance efforts. NS is shown as a useful tool for monitoring tick-associated pathogens in pooled or individual samples.
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Affiliation(s)
- Koray Ergunay
- Walter Reed Biosystematics Unit, Museum Support Center MRC-534, Smithsonian Institution, 4210 Silver Hill Rd., Suitland, MD, 20746-2863, USA.
- One Health Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave., Silver Spring, MD, 20910, USA.
- Department of Entomology, Smithsonian Institution-National Museum of Natural History, 10th St NE and Constitution Ave NE, Washington, DC, 20002, USA.
- Department of Medical Microbiology, Virology Unit, Faculty of Medicine, Hacettepe University, Ankara, Turkey.
| | - Brian P Bourke
- Walter Reed Biosystematics Unit, Museum Support Center MRC-534, Smithsonian Institution, 4210 Silver Hill Rd., Suitland, MD, 20746-2863, USA
- One Health Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave., Silver Spring, MD, 20910, USA
- Department of Entomology, Smithsonian Institution-National Museum of Natural History, 10th St NE and Constitution Ave NE, Washington, DC, 20002, USA
| | | | - Mikeljon P Nikolich
- Bacterial Diseases Branch, Walter Reed Army Institute of Research, Silver Spring, MD, 20910, USA
| | - Suppaluck P Nelson
- Walter Reed Biosystematics Unit, Museum Support Center MRC-534, Smithsonian Institution, 4210 Silver Hill Rd., Suitland, MD, 20746-2863, USA
- One Health Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave., Silver Spring, MD, 20910, USA
- Department of Entomology, Smithsonian Institution-National Museum of Natural History, 10th St NE and Constitution Ave NE, Washington, DC, 20002, USA
| | - Laura Caicedo-Quiroga
- Walter Reed Biosystematics Unit, Museum Support Center MRC-534, Smithsonian Institution, 4210 Silver Hill Rd., Suitland, MD, 20746-2863, USA
- One Health Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave., Silver Spring, MD, 20910, USA
- Department of Entomology, Smithsonian Institution-National Museum of Natural History, 10th St NE and Constitution Ave NE, Washington, DC, 20002, USA
| | - Nataliya Vaydayko
- Ukrainian Center of Diseases Control and Monitoring, Kyiv, 04071, Ukraine
| | - Giorgi Kirkitadze
- U.S. Army Medical Research Directorate-Georgia (USAMRD-G), Tbilisi, Georgia
| | - Tamar Chunashvili
- U.S. Army Medical Research Directorate-Georgia (USAMRD-G), Tbilisi, Georgia
| | - Lewis S Long
- Uniformed Services, University of the Health Sciences, Bethesda, MD, 20814, USA
| | - Jason K Blackburn
- Emerging Pathogens Institute, University of Florida, Gainesville, FL, 32610, USA
| | - Nora G Cleary
- One Health Center of Excellence, University of Florida, Gainesville, FL, 32603, USA
| | - Cynthia L Tucker
- Walter Reed Biosystematics Unit, Museum Support Center MRC-534, Smithsonian Institution, 4210 Silver Hill Rd., Suitland, MD, 20746-2863, USA
- One Health Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave., Silver Spring, MD, 20910, USA
| | - Yvonne-Marie Linton
- Walter Reed Biosystematics Unit, Museum Support Center MRC-534, Smithsonian Institution, 4210 Silver Hill Rd., Suitland, MD, 20746-2863, USA
- One Health Branch, Walter Reed Army Institute of Research, 503 Robert Grant Ave., Silver Spring, MD, 20910, USA
- Department of Entomology, Smithsonian Institution-National Museum of Natural History, 10th St NE and Constitution Ave NE, Washington, DC, 20002, USA
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Boulanger N, Insonere JLM, Van Blerk S, Barthel C, Serres C, Rais O, Roulet A, Servant F, Duron O, Lelouvier B. Cross-alteration of murine skin and tick microbiome concomitant with pathogen transmission after Ixodes ricinus bite. MICROBIOME 2023; 11:250. [PMID: 37952001 PMCID: PMC10638774 DOI: 10.1186/s40168-023-01696-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 10/11/2023] [Indexed: 11/14/2023]
Abstract
BACKGROUND Ticks are major vectors of diseases affecting humans such as Lyme disease or domestic animals such as anaplasmosis. Cross-alteration of the vertebrate host skin microbiome and the tick microbiome may be essential during the process of tick feeding and for the mechanism of pathogen transmission. However, it has been poorly investigated. METHODS We used mice bitten by field-collected ticks (nymphs and adult ticks) in different experimental conditions to investigate, by 16S rRNA gene metabarcoding, the impact of blood feeding on both the mouse skin microbiome and the tick microbiome. We also investigated by PCR and 16S rRNA gene metabarcoding, the diversity of microorganisms transmitted to the host during the process of tick bite at the skin interface and the dissemination of the pathogen in host tissues (blood, heart, and spleen). RESULTS Most of the commensal bacteria present in the skin of control mice were replaced during the blood-feeding process by bacteria originating from the ticks. The microbiome of the ticks was also impacted by the blood feeding. Several pathogens including tick-borne pathogens (Borrelia/Borreliella, Anaplasma, Neoehrlichia, Rickettsia) and opportunistic bacteria (Williamsia) were transmitted to the skin microbiome and some of them disseminated to the blood or spleen of the mice. In the different experiments of this study, skin microbiome alteration and Borrelia/Borreliella transmission were different depending on the tick stages (nymphs or adult female ticks). CONCLUSIONS Host skin microbiome at the bite site was deeply impacted by the tick bite, to an extent which suggests a role in the tick feeding, in the pathogen transmission, and a potentially important impact on the skin physiopathology. The diversified taxonomic profiles of the tick microbiome were also modified by the blood feeding. Video Abstract.
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Affiliation(s)
- Nathalie Boulanger
- UR7290: Virulence bactérienne précoce: groupe Borrelia, FMTS, University of Strasbourg, Strasbourg, France.
| | | | | | - Cathy Barthel
- UR7290: Virulence bactérienne précoce: groupe Borrelia, FMTS, University of Strasbourg, Strasbourg, France
| | - Céline Serres
- Vaiomer, 516 rue Pierre et Marie Curie, 31670, Labège, France
| | - Olivier Rais
- Laboratoire d'écologie et d'épidémiologie parasitaires Institut de Biologie, University of Neuchatel, 2000, Neuchâtel, Switzerland
| | - Alain Roulet
- Vaiomer, 516 rue Pierre et Marie Curie, 31670, Labège, France
| | | | - Olivier Duron
- Maladies Infectieuses et Vecteurs: Ecologie, Génétique, Evolution et Contrôle (MIVEGEC), Centre National de la Recherche Scientifique (CNRS), Institut pour la Recherche et le Développement (IRD), Université de Montpellier (UM), 911 Avenue Agropolis, 34394, Montpellier, France
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Marnin L, Bogale HN, Laukaitis-Yousey HJ, Valencia LM, Rolandelli A, O’Neal AJ, Ferraz CR, Schmitter-Sánchez AD, Cuevas EB, Nguyen TT, Leal-Galvan B, Rickert DM, Bruno VM, Tays Mendes M, Samaddar S, Rainer Butler L, Singh N, Cabrera Paz FE, Oliver JD, Jameson JM, Munderloh UG, Oliva Chávez AS, Mulenga A, Park S, Serre D, Pedra JH. Tick extracellular vesicles impair epidermal homeostasis through immune-epithelial networks during hematophagy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.10.566612. [PMID: 37986907 PMCID: PMC10659423 DOI: 10.1101/2023.11.10.566612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
Hematophagous ectoparasites, such as ticks, rely on impaired wound healing for skin attachment and blood feeding. Wound healing has been extensively studied through the lens of inflammatory disorders and cancer, but limited attention has been given to arthropod-borne diseases. Here, we used orthogonal approaches combining single-cell RNA sequencing (scRNAseq), flow cytometry, murine genetics, and intravital microscopy to demonstrate how tick extracellular vesicles (EVs) disrupt networks involved in tissue repair. Impairment of EVs through silencing of the SNARE protein vamp33 negatively impacted ectoparasite feeding and survival in three medically relevant tick species, including Ixodes scapularis. Furthermore, I. scapularis EVs affected epidermal γδ T cell frequencies and co-receptor expression, which are essential for keratinocyte function. ScRNAseq analysis of the skin epidermis in wildtype animals exposed to vamp33-deficient ticks revealed a unique cluster of keratinocytes with an overrepresentation of pathways connected to wound healing. This biological circuit was further implicated in arthropod fitness when tick EVs inhibited epithelial proliferation through the disruption of phosphoinositide 3-kinase activity and keratinocyte growth factor levels. Collectively, we uncovered a tick-targeted impairment of tissue repair via the resident γδ T cell-keratinocyte axis, which contributes to ectoparasite feeding.
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Affiliation(s)
- Liron Marnin
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Haikel N. Bogale
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Hanna J. Laukaitis-Yousey
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Luisa M. Valencia
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Agustin Rolandelli
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Anya J. O’Neal
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Camila Rodrigues Ferraz
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Axel D. Schmitter-Sánchez
- Division of Dermatology, Department of Medicine, College of Human Medicine, Michigan State University, East Lansing, MI, USA
- Department of Pharmacology and Toxicology, College of Human Medicine, Michigan State University, East Lansing, MI, USA
- Institute for Quantitative Health Science & Engineering, Michigan State University, East Lansing, MI, USA
| | - Emily Bencosme Cuevas
- Department of Veterinary Pathobiology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Thu-Thuy Nguyen
- Department of Veterinary Pathobiology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Brenda Leal-Galvan
- Department of Entomology, Texas A&M University, College Station, TX, USA
| | - David M. Rickert
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Vincent M. Bruno
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, USA
| | - M. Tays Mendes
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Sourabh Samaddar
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - L. Rainer Butler
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Nisha Singh
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Francy E. Cabrera Paz
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Jonathan D. Oliver
- Division of Environmental Health Sciences, School of Public Health, University of Minnesota, Minneapolis, MN, USA
| | - Julie M Jameson
- Department of Biology, California State University San Marcos, San Marcos, CA, USA
| | | | | | - Albert Mulenga
- Department of Veterinary Pathobiology, School of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Sangbum Park
- Division of Dermatology, Department of Medicine, College of Human Medicine, Michigan State University, East Lansing, MI, USA
- Department of Pharmacology and Toxicology, College of Human Medicine, Michigan State University, East Lansing, MI, USA
- Institute for Quantitative Health Science & Engineering, Michigan State University, East Lansing, MI, USA
| | - David Serre
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
- Institute for Genome Sciences, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Joao H.F. Pedra
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
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Karim S, Zenzal TJ, Beati L, Sen R, Adegoke A, Kumar D, Downs LP, Keko M, Nussbaum A, Becker DJ, Moore FR. Ticks without borders: Microbial communities of immature Neotropical tick species parasitizing migratory landbirds along northern Gulf of Mexico. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.22.563347. [PMID: 37961388 PMCID: PMC10634713 DOI: 10.1101/2023.10.22.563347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
The long-distance, seasonal migrations of birds make them an effective ecological bridge for the movement of ticks. The introduction of exotic tick species to new geographical regions can lead to the emergence of novel tick-borne pathogens or the re-emergence of previously eradicated ones. This study assessed the prevalence of exotic tick species parasitizing resident, short-distance, and long-distance songbirds during spring and autumn at stopover sites in the northern Gulf of Mexico using the mitochondrial 12S rDNA gene. Birds were captured for tick collection from six different sites from late August to early November in both 2018 and 2019. The highest number of ticks were collected in the 2019 season. Most ticks were collected off the Yellow-breasted Chat (Icteria virens) and Common Yellowthroat (Geothlypis trichas), and 54% of the total ticks collected were from Grand Chenier, LA. A high throughput 16S ribosomal RNA sequencing approach was followed to characterize the microbial communities and identify pathogenic microbes in all tick samples. Tick microbial communities, diversity, and community structure were determined using quantitative insight into microbial ecology (QIIME). The sparse correlations for compositional data (SparCC) approach was then used to construct microbial network maps and infer microbial correlations. A total of 421 individual ticks in the genera Amblyomma, Haemaphysalis, and Ixodes were recorded from 28 songbird species, of which Amblyomma and Amblyomma longirostre was the most abundant tick genus and species, respectively. Microbial profiles showed that Proteobacteria was the most abundant phylum. The most abundant bacteria include the pathogenic Rickettsia and endosymbiont Francisella, Candidatus Midichloria, and Spiroplasma. BLAST analysis and phylogenetic reconstruction of the Rickettsia sequences revealed the highest similarities to pathogenic spotted and non-spotted fever groups, including R. buchneri, R. conorii, R. prowazekii, R. bellii, R. australis, R. parkeri, R. monacensis, and R. monteiroi. Permutation multivariate analysis of variance revealed that the relative abundance of Francisella and Rickettsia drives microbial patterns across the tick genera. We also observed a higher percentage of positive correlations in microbe-microbe interactions among members of the microbial communities. Network analysis suggested a negative correlation between a) Francisella and Rickettsia and, b) Francisella and Cutibacterium. Lastly, mapping the distributions of bird species parasitized during spring migrations highlighted geographic hotspots where migratory songbirds could disperse ticks and their pathogens at stopover sites or upon arrival to their breeding grounds, the latter showing means dispersal distances from 421-5003 kilometers. These findings strongly highlight the potential role of migratory birds in the epidemiology of tick-borne pathogens.
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Affiliation(s)
- Shahid Karim
- School of Biological, Environmental, and Earth Sciences, University of Southern Mississippi, Hattiesburg, MS 39406, USA
| | - Theodore J. Zenzal
- United States Geological Survey, Wetland and Aquatic Research Center, Lafayette, LA 70506
| | - Lorenza Beati
- Institute for Coastal Plain Science, Georgia Southern University, Statesboro, GA 20460
| | - Raima Sen
- School of Biological, Environmental, and Earth Sciences, University of Southern Mississippi, Hattiesburg, MS 39406, USA
| | - Abdulsalam Adegoke
- School of Biological, Environmental, and Earth Sciences, University of Southern Mississippi, Hattiesburg, MS 39406, USA
| | - Deepak Kumar
- School of Biological, Environmental, and Earth Sciences, University of Southern Mississippi, Hattiesburg, MS 39406, USA
| | - Latoyia P. Downs
- School of Biological, Environmental, and Earth Sciences, University of Southern Mississippi, Hattiesburg, MS 39406, USA
| | - Mario Keko
- Institute for Coastal Plain Science, Georgia Southern University, Statesboro, GA 20460
| | - Ashly Nussbaum
- Institute for Coastal Plain Science, Georgia Southern University, Statesboro, GA 20460
| | - Daniel J. Becker
- Department of Biology, University of Oklahoma, Norman, OK 73019, USA
| | - Frank R. Moore
- School of Biological, Environmental, and Earth Sciences, University of Southern Mississippi, Hattiesburg, MS 39406, USA
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de la Fuente J, Estrada-Peña A, Rafael M, Almazán C, Bermúdez S, Abdelbaset AE, Kasaija PD, Kabi F, Akande FA, Ajagbe DO, Bamgbose T, Ghosh S, Palavesam A, Hamid PH, Oskam CL, Egan SL, Duarte-Barbosa A, Hekimoğlu O, Szabó MPJ, Labruna MB, Dahal A. Perception of Ticks and Tick-Borne Diseases Worldwide. Pathogens 2023; 12:1258. [PMID: 37887774 PMCID: PMC10610181 DOI: 10.3390/pathogens12101258] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 10/16/2023] [Accepted: 10/18/2023] [Indexed: 10/28/2023] Open
Abstract
In this comprehensive review study, we addressed the challenge posed by ticks and tick-borne diseases (TBDs) with growing incidence affecting human and animal health worldwide. Data and perspectives were collected from different countries and regions worldwide, including America, Europe, Africa, Asia, and Oceania. The results updated the current situation with ticks and TBD and how it is perceived by society with information bias and gaps. The study reinforces the importance of multidisciplinary and international collaborations to advance in the surveillance, communication and proposed future directions to address these challenges.
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Affiliation(s)
- José de la Fuente
- SaBio, Instituto de Investigación en Recursos Cinegéticos, IREC-CSIC-UCLM-JCCM, Ronda de Toledo 12, 13005 Ciudad Real, Spain;
- Department of Veterinary Pathobiology, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK 74078, USA
| | - Agustín Estrada-Peña
- Department of Animal Health, Faculty of Veterinary Medicine, University of Zaragoza, 50013 Zaragoza, Spain
- Research Group in Emerging Zoonoses, Instituto Agroalimentario de Aragón-IA2, Universidad de Zaragoza-CITA, 50013 Zaragoza, Spain
| | - Marta Rafael
- SaBio, Instituto de Investigación en Recursos Cinegéticos, IREC-CSIC-UCLM-JCCM, Ronda de Toledo 12, 13005 Ciudad Real, Spain;
| | - Consuelo Almazán
- Facultad de Ciencias Naturales, Universidad Autonóma de Querétaro, Avenida de las Ciencias S/N Juriquilla, Querétaro 76230, Mexico;
| | - Sergio Bermúdez
- Medical Entomology Research Department, Gorgas Memorial Institute for Health Research, Panama City 0816-02593, Panama;
| | - Abdelbaset E. Abdelbaset
- Laboratory of Parasitology, Graduate School of Infectious Diseases, Faculty of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Sapporo 060-0818, Hokkaido, Japan;
| | - Paul D. Kasaija
- National Livestock Resources Research Institute (NaLIRRI/NARO), Kampala P.O. Box 5704, Uganda; (P.D.K.); (F.K.)
| | - Fredrick Kabi
- National Livestock Resources Research Institute (NaLIRRI/NARO), Kampala P.O. Box 5704, Uganda; (P.D.K.); (F.K.)
| | - Foluke Adedayo Akande
- Department of Veterinary Parasitology and Entomology, College of Veterinary Medicine, Federal University of Agriculture, Abeokuta 111101, Ogun State, Nigeria;
| | - Dorcas Oluwakemi Ajagbe
- Department of Pure and Applied Zoology, College of Biological Sciences, Federal University of Agriculture, Abeokuta 111101, Ogun State, Nigeria;
| | - Timothy Bamgbose
- Department of Biological Sciences, Microbiology Unit, Faculty of Science, Kings University, Ode-Omu City 221102, Osun State, Nigeria;
| | - Srikant Ghosh
- Entomology Laboratory, Indian Veterinary Research Institute, Izatnagar, Bareilly 243122, Uttar Pradesh, India;
- IVRI-Eastern Regional Station, 37, Belgachia Road, Kolkata 700037, West Bengal, India
| | - Azhahianambi Palavesam
- Translational Research Platform for Veterinary Biologicals, Centre for Animal Health Studies, Tamil Nadu Veterinary and Animal Sciences University, Chennai 600051, Tamil Nadu, India;
| | - Penny H. Hamid
- Department of Animal Science, Universitas Sebelas Maret, Surakarta 57126, Indonesia;
| | - Charlotte L. Oskam
- School of Medical, Molecular and Forensic Sciences, Murdoch University, Perth, WA 6150, Australia; (C.L.O.); (S.L.E.)
- Centre for One Health and Biosecurity, Harry Butler Institute, Murdoch University, Perth, WA 6150, Australia;
| | - Siobhon L. Egan
- School of Medical, Molecular and Forensic Sciences, Murdoch University, Perth, WA 6150, Australia; (C.L.O.); (S.L.E.)
- Centre for One Health and Biosecurity, Harry Butler Institute, Murdoch University, Perth, WA 6150, Australia;
| | - Amanda Duarte-Barbosa
- Centre for One Health and Biosecurity, Harry Butler Institute, Murdoch University, Perth, WA 6150, Australia;
- School of Veterinary Medicine, Murdoch University, Perth, WA 6150, Australia
| | - Olcay Hekimoğlu
- Division of Ecology, Faculty of Science, Hacettepe University, Beytepe, Ankara 06800, Turkey;
| | - Matias P. J. Szabó
- Laboratório de Ixodologia, Faculdade de Medicina Veterinária, Universidade Federal de Uberlândia, Av. Pará, 1720/Campus Umuarama-Bloco 2T, Uberlândia 38400-902, Brazil;
| | - Marcelo B. Labruna
- Faculty of Veterinary Medicine and Animal Science, University of São Paulo, Sao Paulo 05508-220, Brazil;
| | - Ananta Dahal
- Department of Microbiology and Parasitology, Faculty of Animal Science, Veterinary Science and Fisheries, Agriculture and Forestry University, Chitwan 44200, Nepal;
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Zeman P. Tick-Bite "Meteo"-Prevention: An Evaluation of Public Responsiveness to Tick Activity Forecasts Available Online. Life (Basel) 2023; 13:1908. [PMID: 37763311 PMCID: PMC10533051 DOI: 10.3390/life13091908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/06/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
Until causal prophylaxis is available, the avoidance of ticks and personal protection provide the best insurance against contracting a tick-borne disease (TBD). To support public precaution, tick-activity forecasts (TAFs) based on weather projection are provided online for some regions/countries. This study-aimed at evaluating the efficacy of this preventative strategy-was conducted between 2015 and 2019, and included two countries where TAFs are issued regularly (Czech Republic, Germany) and two neighbouring countries for reference (Austria, Switzerland). Google Trends (GT) data were used to trace public concern with TAFs and related health information. GTs were compared with epidemiological data on TBD cases and tick bites, wherever available. Computer simulations of presumable effectiveness under various scenarios were performed. This study showed that public access to TAFs/preventive information is infrequent and not optimally distributed over the season. Interest arises very early in midwinter and then starts to fall in spring/summer when human-tick contacts culminate. Consequently, a greater number of TBD cases are contracted beyond the period of maximum public responsiveness to prevention guidance. Simulations, nevertheless, indicate that there is a potential for doubling the prevention yield if risk assessment, in addition to tick activity, subsumes the population's exposure, and a real-time surrogate is proposed.
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Affiliation(s)
- Petr Zeman
- Medical Laboratories, Konevova 205, 130 00 Prague, Czech Republic
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Herrera G, Vieira Lista MC, Páez-Triana L, Muro A, López-Abán J, Muñoz M, Ramírez JD. Examining the gut microbiota from several human-biting tick species in Northwestern Spain. JOURNAL OF MEDICAL ENTOMOLOGY 2023; 60:1081-1087. [PMID: 37410021 DOI: 10.1093/jme/tjad084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 05/22/2023] [Accepted: 06/22/2023] [Indexed: 07/07/2023]
Abstract
Tick-borne diseases have increased significantly in Europe and Spain in recent years. One strategy explored for tick surveillance and control is the study of the microbiota. The focus is on understanding the relationships between pathogens and endosymbionts within the microbiota and how these relationships can alter these arthropods' vectorial capacity. Thus, it is pivotal to depict the bacterial communities composing the microbiota of ticks present in specific territories. This work aimed to describe the microbiota present in 29 adult individuals of 5 tick species collected from 4 provinces of Castilla y Leon in northwestern Spain from 2015 to 2022. DNA extraction and sequencing of the V4 hypervariable region of 16S-rRNA was performed on the tick samples, with subsequent analysis of diversity, taxonomic composition, and correlations between genera of microorganisms. There were no differences in the alpha diversity of microbiota by tick species, nor were compositional changes evident at the phylum level for microorganisms. However, interindividual differences at the microbial genus level allowed spatial differentiation of the 5 tick species included in the study. Correlation analyses showed complex interactions between different genera of microbiota members. These findings provide an initial insight into the composition of the gut microbiota of various tick species in northwestern Spain, which can contribute to establishing surveillance and control measures to reduce diseases such as rickettsiosis, Lyme disease, and Crimean-Congo hemorrhagic fever.
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Affiliation(s)
- Giovanny Herrera
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
- Infectious and Tropical Diseases Research Group (e-INTRO), Biomedical Research Institute of Salamanca-Research Centre for Tropical Diseases at the University of Salamanca (IBSAL-CIETUS), Faculty of Pharmacy, University of Salamanca, 37007 Salamanca, Spain
| | - María Carmen Vieira Lista
- Infectious and Tropical Diseases Research Group (e-INTRO), Biomedical Research Institute of Salamanca-Research Centre for Tropical Diseases at the University of Salamanca (IBSAL-CIETUS), Faculty of Pharmacy, University of Salamanca, 37007 Salamanca, Spain
| | - Luisa Páez-Triana
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Antonio Muro
- Infectious and Tropical Diseases Research Group (e-INTRO), Biomedical Research Institute of Salamanca-Research Centre for Tropical Diseases at the University of Salamanca (IBSAL-CIETUS), Faculty of Pharmacy, University of Salamanca, 37007 Salamanca, Spain
| | - Julio López-Abán
- Infectious and Tropical Diseases Research Group (e-INTRO), Biomedical Research Institute of Salamanca-Research Centre for Tropical Diseases at the University of Salamanca (IBSAL-CIETUS), Faculty of Pharmacy, University of Salamanca, 37007 Salamanca, Spain
| | - Marina Muñoz
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
| | - Juan David Ramírez
- Centro de Investigaciones en Microbiología y Biotecnología-UR (CIMBIUR), Facultad de Ciencias Naturales, Universidad del Rosario, Bogotá, Colombia
- Molecular Microbiology Laboratory, Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
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Hunt EA, Schwartz S, Chinnici N. Passive Surveillance of SARS-CoV-2 in Adult Blacklegged Ticks ( Ixodes scapularis) from Northeast Pennsylvania. Life (Basel) 2023; 13:1857. [PMID: 37763261 PMCID: PMC10532621 DOI: 10.3390/life13091857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/25/2023] [Accepted: 08/28/2023] [Indexed: 09/29/2023] Open
Abstract
Monitoring the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in wildlife is vital to public health. White-tailed deer (Odocoileus virginianus) in the United States have tested positive for SARS-CoV-2, and their interactions with blacklegged ticks (Ixodes scapularis) raise the question of whether or not these ticks also carry SARS-CoV-2. In this study, 449 blacklegged ticks from Northeast Pennsylvania were collected in the fall of 2022 and tested via RT-qPCR for the presence of SARS-CoV-2. Fourteen ticks were amplified with late quantification cycles (Cq) using primers from two nucleocapsid genes (N1 and N2) via TaqMan assays. Three of these samples were amplified on a SYBR green assay during secondary testing. However, melt curve and gel electrophoresis analysis verified negative results for these three samples. Genetic sequencing was performed on one of the three samples to look for potential cross-reactions causing the amplification observed. However, no significant match was found in the NCBI database. Although all 449 blacklegged ticks were negative for SARS-CoV-2, I. scapularis should continue to be tested for COVID-19. If blacklegged ticks test positive for COVID-19 in the future, research should focus on determining the stability of SARS-CoV-2 with the tick vector and the potential for transmission through tick bites.
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Affiliation(s)
| | | | - Nicole Chinnici
- Dr. Jane Huffman Wildlife Genetics Institute, East Stroudsburg University, East Stroudsburg, PA 18301, USA; (E.A.H.); (S.S.)
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Shultz L, López-Pérez AM, Jasuja R, Helman S, Prager K, Tokuyama A, Quinn N, Bucklin D, Rudd J, Clifford D, Brown J, Riley S, Foley J. Vector-Borne Disease in Wild Mammals Impacted by Urban Expansion and Climate Change. ECOHEALTH 2023; 20:286-299. [PMID: 38015408 DOI: 10.1007/s10393-023-01650-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 06/03/2023] [Accepted: 08/08/2023] [Indexed: 11/29/2023]
Abstract
Ecologies of zoonotic vector-borne diseases may shift with climate and land use change. As many urban-adapted mammals can host ectoparasites and pathogens of human and animal health concern, our goal was to compare patterns of arthropod-borne disease among medium-sized mammals across gradients of rural to urban landscapes in multiple regions of California. DNA of Anaplasma phagocytophilum was found in 1-5% of raccoons, coyotes, and San Joaquin kit foxes; Borrelia burgdorferi in one coyote, rickettsiae in two desert kit foxes, and Yersinia pestis in two coyotes. There was serological evidence of rickettsiae in 14-37% of coyotes, Virginia opossums, and foxes; and A. phagocytophilum in 6-40% of coyotes, raccoons, Virginia opossums, and foxes. Of six flea species, one Ctenocephalides felis from a raccoon was positive for Y. pestis, and Ct. felis and Pulex simulans fleas tested positive for Rickettsia felis and R. senegalensis. A Dermacentor similis tick off a San Joaquin kit fox was PCR-positive for A. phagocytophilum. There were three statistically significant risk factors: risk of A. phagocytophilum PCR-positivity was threefold greater in fall vs the other three seasons; hosts adjacent to urban areas had sevenfold increased A. phagocytophilum seropositivity compared with urban and rural areas; and there was a significant spatial cluster of rickettsiae within greater Los Angeles. Animals in areas where urban and rural habitats interconnect can serve as sentinels during times of change in disease risk.
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Affiliation(s)
- Laura Shultz
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California-Davis, Davis, CA, 95616, USA
| | - Andrés M López-Pérez
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California-Davis, Davis, CA, 95616, USA.
- Red de Biología y Conservación de Vertebrados, Instituto de Ecología, Xalapa, Veracruz, A.C. 91073, México.
| | - Raina Jasuja
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California-Davis, Davis, CA, 95616, USA
| | - Sarah Helman
- Department of Ecology and Evolutionary Biology, University of California-Los Angeles, Los Angeles, CA, USA
| | - Katherine Prager
- Department of Ecology and Evolutionary Biology, University of California-Los Angeles, Los Angeles, CA, USA
| | - Amanda Tokuyama
- Department of Ecology and Evolutionary Biology, University of California-Los Angeles, Los Angeles, CA, USA
| | - Niamh Quinn
- South Coast Research and Extension Center, University of California Agriculture and Natural Resources, Irvine, CA, USA
| | - Danielle Bucklin
- South Coast Research and Extension Center, University of California Agriculture and Natural Resources, Irvine, CA, USA
| | - Jaime Rudd
- California Department of Fish and Wildlife, Wildlife Investigations Laboratory, Rancho Cordova, CA, USA
| | - Deana Clifford
- California Department of Fish and Wildlife, Wildlife Investigations Laboratory, Rancho Cordova, CA, USA
| | - Justin Brown
- National Park Service, Santa Monica Mountains National Recreation Area, Calabasas, CA, USA
| | - Seth Riley
- National Park Service, Santa Monica Mountains National Recreation Area, Calabasas, CA, USA
| | - Janet Foley
- Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California-Davis, Davis, CA, 95616, USA
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41
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Lyu B, Li J, Niemeyer B, Stanley D, Song Q. Identification and characterization of ecdysis-related neuropeptides in the lone star tick Amblyomma americanum. Front Endocrinol (Lausanne) 2023; 14:1256618. [PMID: 37693356 PMCID: PMC10490126 DOI: 10.3389/fendo.2023.1256618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 08/08/2023] [Indexed: 09/12/2023] Open
Abstract
Introduction The lone star tick, Amblyomma americanum, is an important ectoparasite known for transmitting diseases to humans and animals. Ecdysis-related neuropeptides (ERNs) control behaviors crucial for arthropods to shed exoskeletons. However, ERN identification and characterization in A. americanum remain incomplete. Methods We investigated ERNs in A. americanum, assessing their evolutionary relationships, protein properties, and functions. Phylogeny, sequence alignment, and domain structures of ERNs were analyzed. ERN functionality was explored using enrichment analysis, and developmental and tissue-specific ERN expression profiles were examined using qPCR and RNAi experiments. Results and discussion The study shows that ERN catalogs (i.e., eclosion hormone, corazonin, and bursicon) are found in most arachnids, and these ERNs in A. americanum have high evolutionary relatedness with other tick species. Protein modeling analysis indicates that ERNs primarily consist of secondary structures and protein stabilizing forces (i.e., hydrophobic clusters, hydrogen bond networks, and salt bridges). Gene functional analysis shows that ENRs are involved in many ecdysis-related functions, including ecdysis-triggering hormone activity, neuropeptide signaling pathway, and corazonin receptor binding. Bursicon proteins have functions in chitin binding and G protein-coupled receptor activity and strong interactions with leucine-rich repeat-containing G-protein coupled receptor 5. ERNs were expressed in higher levels in newly molted adults and synganglia. RNAi-mediated knockdown of burs α and burs β expression led to a significant decrease in the expression of an antimicrobial peptide, defensin, suggesting they might act in signaling or regulatory pathways that control the expression of immune-related genes. Arthropods are vulnerable immediately after molting because new cuticles are soft and susceptible to injury and pathogen infections. Bursicon homodimers act in prophylactic immunity during this vulnerable period by increasing the synthesis of transcripts encoding antimicrobial peptides to protect them from microbial invasion. Collectively, the expression pattern and characterization of ERNs in this study contribute to a deeper understanding of the physiological processes in A. americanum.
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Affiliation(s)
- Bo Lyu
- Division of Plant Science and Technology, University of Missouri, Columbia, MO, United States
| | - Jingjing Li
- Division of Plant Science and Technology, University of Missouri, Columbia, MO, United States
| | - Brigid Niemeyer
- Division of Plant Science and Technology, University of Missouri, Columbia, MO, United States
| | - David Stanley
- Biological Control of Insect Research Laboratory, United States Department of Agriculture-Agricultural Research Station (USDA/ARS), Columbia, MO, United States
| | - Qisheng Song
- Division of Plant Science and Technology, University of Missouri, Columbia, MO, United States
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42
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Xi D, Thoma A, Rajput-Ray M, Madigan A, Avramovic G, Garg K, Gilbert L, Lambert JS. A Longitudinal Study of a Large Clinical Cohort of Patients with Lyme Disease and Tick-Borne Co-Infections Treated with Combination Antibiotics. Microorganisms 2023; 11:2152. [PMID: 37763996 PMCID: PMC10536678 DOI: 10.3390/microorganisms11092152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 08/22/2023] [Accepted: 08/23/2023] [Indexed: 09/29/2023] Open
Abstract
The rising prevalence of tick-borne infections (TBIs) necessitates further attention. This study retrospectively investigated the types of TBIs, symptoms, and if combination antibiotics were helpful within a patient cohort at an infectious disease clinic in Ireland. In this chart audit of 301 individuals (184 female, 117 male) tested for TBIs, 140 (46.51%) had positive antibody responses for TBIs from an ELISA (enzyme-linked immunoassay) that was based on a modified two-tiered testing protocol. A total of 93 (66.43%) patients had positive antibody responses to one TBI: 83 (59.29%) for Borrelia, 7 (5.00%) for Rickettsia, and 1 (0.71%) each for either Babesia, Bartonella, or Ehrlichia. The remaining 47 (33.57%) patients were infected with multiple TBIs. These patients were treated with combination antibiotics and monitored at two subsequent follow-ups. Only 2 of 101 patients (1.98%) had discontinued treatment by the second follow-up. In the first follow-up with 118 patients, 70 (59.32%) reported pain and 48 (40.68%) had neurological symptoms. In the next follow-up of 101 patients, 41 (40.59%) had pain while 30 (29.70%) had neurological symptoms. There were statistically significant reductions in the incidence of pain (41.43%) and neurological (37.50%) symptoms between follow-ups. Thus, our study demonstrates that combination antibiotics effectively relieve TBI symptoms with good patient tolerance.
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Affiliation(s)
- David Xi
- School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland; (D.X.); (A.T.); (A.M.); (G.A.)
| | - Abbie Thoma
- School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland; (D.X.); (A.T.); (A.M.); (G.A.)
| | - Minha Rajput-Ray
- Curaidh Clinic: Innovative Solutions for Pain, Chronic Disease and Work Health, Perthshire PH2 8EH, UK;
| | - Anne Madigan
- School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland; (D.X.); (A.T.); (A.M.); (G.A.)
| | - Gordana Avramovic
- School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland; (D.X.); (A.T.); (A.M.); (G.A.)
| | - Kunal Garg
- Te?ted Oy, 40100 Jyväskylä, Finland; (K.G.); (L.G.)
| | | | - John S. Lambert
- School of Medicine, University College Dublin, D04 V1W8 Dublin, Ireland; (D.X.); (A.T.); (A.M.); (G.A.)
- Infectious Diseases Department, Mater Misericordiae University Hospital, D07 R2WY Dublin, Ireland
- Infectious Diseases Department, The Rotunda Hospital, D01 P5W9 Dublin, Ireland
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43
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Jobe NB, Huijben S, Paaijmans KP. Non-target effects of chemical malaria vector control on other biological and mechanical infectious disease vectors. Lancet Planet Health 2023; 7:e706-e717. [PMID: 37558351 DOI: 10.1016/s2542-5196(23)00136-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 06/09/2023] [Accepted: 06/17/2023] [Indexed: 08/11/2023]
Abstract
Public health insecticides play a crucial role in malaria control and elimination programmes. Many other arthropods, including mechanical and biological vectors of infectious diseases, have similar indoor feeding or resting behaviours, or both, as malaria mosquitoes, and could be exposed to the same insecticides. In this Personal View, we show that little is known about the insecticide susceptibility status and the extent of exposure to malaria interventions of other arthropod species. We highlight that there is an urgent need to better understand the selection pressure for insecticide resistance in those vectors, to ensure current and future active ingredients remain effective in targeting a broad range of arthropod species, allowing us to prevent and control future outbreaks of infectious diseases other than malaria.
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Affiliation(s)
- Ndey Bassin Jobe
- The Center for Evolution & Medicine, School of Life Sciences, Arizona State University, Tempe, AZ, USA
| | - Silvie Huijben
- The Center for Evolution & Medicine, School of Life Sciences, Arizona State University, Tempe, AZ, USA; Simon A Levin Mathematical, Computational and Modeling Sciences Center, Arizona State University, Tempe, AZ, USA
| | - Krijn P Paaijmans
- The Center for Evolution & Medicine, School of Life Sciences, Arizona State University, Tempe, AZ, USA; Simon A Levin Mathematical, Computational and Modeling Sciences Center, Arizona State University, Tempe, AZ, USA; The Biodesign Center for Immunotherapy, Vaccines and Virotherapy, Arizona State University, Tempe, AZ, USA; ISGlobal, Barcelona, Spain; Centro de Investigação em Saúde de Manhiça, Maputo, Mozambique.
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44
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Cui Y, Matias J, Tang X, Cibichakravarthy B, DePonte K, Wu MJ, Fikrig E. Metabolomic changes associated with acquired resistance to Ixodes scapularis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.07.31.551287. [PMID: 37577710 PMCID: PMC10418055 DOI: 10.1101/2023.07.31.551287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Guinea pigs repeatedly exposed to Ixodes scapularis develop acquired resistance to the ticks (ATR). The molecular mechanisms of ATR have not been fully elucidated, and partially involve immune responses to proteins in tick saliva. In this study, we examined the metabolome of sera of guinea pigs during the development of ATR. Induction of components of the tyrosine metabolic pathway, including hydroxyphenyllactic acid (HPLA), were associated with ATR. We therefore administered HPLA to mice, an animal that does not develop ATR, and exposed the animals to I. scapularis . We also administered nitisinone, a known inhibitor of tyrosine degradation, to another group of mice. The mortality of I. scapularis that fed on mice given HPLA or nitisinone was 26% and 72% respectively, compared with 2% mortality among ticks that fed on control animals. These data indicate that metabolic changes that occur after tick bites contribute to ATR.
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45
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Ali A, Obaid MK, Almutairi MM, Alouffi A, Numan M, Ullah S, Rehman G, Islam ZU, Khan SB, Tanaka T. Molecular detection of Coxiella spp. in ticks (Ixodidae and Argasidae) infesting domestic and wild animals: with notes on the epidemiology of tick-borne Coxiella burnetii in Asia. Front Microbiol 2023; 14:1229950. [PMID: 37577446 PMCID: PMC10415105 DOI: 10.3389/fmicb.2023.1229950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 07/03/2023] [Indexed: 08/15/2023] Open
Abstract
Tick-borne Coxiella spp. are emerging in novel regions infecting different hosts, but information regarding their occurrence is limited. The purpose of this study was the molecular screening of Coxiella spp. in various ticks infesting goats, sheep, camels, cattle, wild mice, and domestic fowls (Gallus gallus domesticus) in various districts of Khyber Pakhtunkhwa, Pakistan. Morphologically identified tick species were confirmed by obtaining their cox1 sequences and were molecularly screened for Coxiella spp. by sequencing GroEL fragments. Almost 345 out of 678 (50.9%) hosts were infested by nine tick species. Regarding the age groups, the hosts having an age >3 years were highly infested (192/345, 55.6%), while gender-wise infestation was higher in female hosts (237/345, 68.7%). In collected ticks, the nymphs were outnumbered (613/1,119, 54.8%), followed by adult females (293/1,119, 26.2%) and males (213/1,119, 19.7%). A total of 227 ticks were processed for molecular identification and detection of Coxiella spp. The obtained cox1 sequences of nine tick species such as Hyalomma dromedarii, Hyalomma anatolicum, Haemaphysalis cornupunctata, Haemaphysalis bispinosa, Haemaphysalis danieli, Haemaphysalis montgomeryi, Rhipicephalus haemaphysaloides, Rhipicephalus microplus, and Argas persicus showed maximum identities between 99.6% and 100% with the same species and in the phylogenetic tree, clustered to the corresponding species. All the tick species except Ha. danieli and R. microplus were found positive for Coxiella spp. (40/227, 17.6%), including Coxiella burnetii (15/40, 6.7%), Coxiella endosymbionts (14/40, 6.3%), and different Coxiella spp. (11/40, 4.9%). By the BLAST results, the GroEL fragments of Coxiella spp. showed maximum identity to C. burnetii, Coxiella endosymbionts, and Coxiella sp., and phylogenetically clustered to the corresponding species. This is the first comprehensive report regarding the genetic characterization of Coxiella spp. in Pakistan's ticks infesting domestic and wild hosts. Proper surveillance and management measures should be undertaken to avoid health risks.
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Affiliation(s)
- Abid Ali
- Department of Zoology, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Muhammad Kashif Obaid
- Department of Zoology, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Mashal M. Almutairi
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Abdulaziz Alouffi
- King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia
| | - Muhammad Numan
- Department of Zoology, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Shafi Ullah
- Department of Zoology, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Gauhar Rehman
- Department of Zoology, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Zia Ul Islam
- Department of Biotechnology, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Sher Bahadar Khan
- College of Animal Husbandry and Veterinary Sciences, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
| | - Tetsuya Tanaka
- Laboratory of Infectious Diseases, Joint Faculty of Veterinary Medicine, Kagoshima University, Kagoshima, Japan
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Nallan K, Ayyavu V, Ayyanar E, Thirupathi B, Gupta B, Devaraju P, Kumar A, Rajaiah P. Molecular Evidence of Rickettsia conorii subsp. raoultii and Rickettsia felis in Haemaphysalis intermedia Ticks in Sirumalai, Eastern Ghats, Tamil Nadu, South India. Microorganisms 2023; 11:1713. [PMID: 37512886 PMCID: PMC10384621 DOI: 10.3390/microorganisms11071713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 06/21/2023] [Accepted: 06/22/2023] [Indexed: 07/30/2023] Open
Abstract
Rickettsia is an important pathogenic entity among tick-borne diseases (TBD), which are considered serious emerging public health problems globally. In India, though the widespread distribution of ticks and TBD has been documented, its real burden remains underreported. In a preliminary attempt, rickettsial surveillance was carried out in ticks collected from Sirumalai, Eastern Ghats in Tamil Nadu, India by using pathogen genome-based phylogenetic inferences generated through multi-locus sequence typing (MLST), targeting the genes 16s rRNA, OmpA, OmpB, and gltA by nested PCR. The laboratory evidence confirms the circulation of Rickettsia in Haemaphysalis intermedia species collected from this area. Analysis of the four gene sequences detected demonstrates their closest identity to the spotted fever group (SFG) available in the GenBank database. Further, multiple sequence alignment with other sequences derived from the GenBank database showed close relatedness to Rickettsia conorii subsp. raoultii (16s rDNA-99.32%, OmpA-93.38%, OmpB-97.39%, and gltA-98.57%) and Rickettsia felis (16s rDNA 99.54%, OmpA-100%, OmpB-100% and gltA-99.41%). With this genomic evidence, the circulation of rickettsial pathogens in the pools of H. intermedia ticks infesting livestock in the Sirumalai foothill area has been demonstrated and to complement the microscopic identification of the tick species, DNA barcodes were generated for H. intermedia using the mitochondrial cytochrome c oxidase subunit I gene (COI). Nevertheless, R. raoultii and R. felis were found to be the aetiological agents of tick-borne lymphadenopathy and flea-borne spotted fever in human cases, respectively, further study on the determination of their diversity, distribution, clinical relevance, and potential risk to the local community in these areas is highly warranted.
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Affiliation(s)
- Krishnamoorthy Nallan
- ICMR-Vector Control Research Centre, Field Unit, 4. Sarojini Street, Madurai 625002, India
| | - Veerapathiran Ayyavu
- ICMR-Vector Control Research Centre, Field Unit, 4. Sarojini Street, Madurai 625002, India
| | - Elango Ayyanar
- ICMR-Vector Control Research Centre, Puducherry 605006, India
| | - Balaji Thirupathi
- ICMR-Vector Control Research Centre, Field Unit, 4. Sarojini Street, Madurai 625002, India
| | - Bhavna Gupta
- ICMR-Vector Control Research Centre, Field Unit, 4. Sarojini Street, Madurai 625002, India
| | | | - Ashwani Kumar
- ICMR-Vector Control Research Centre, Puducherry 605006, India
| | - Paramasivan Rajaiah
- ICMR-Vector Control Research Centre, Field Unit, 4. Sarojini Street, Madurai 625002, India
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47
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Parizi LF, Githaka NW, Logullo C, Zhou J, Onuma M, Termignoni C, da Silva Vaz I. Universal Tick Vaccines: Candidates and Remaining Challenges. Animals (Basel) 2023; 13:2031. [PMID: 37370541 DOI: 10.3390/ani13122031] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 05/29/2023] [Accepted: 06/17/2023] [Indexed: 06/29/2023] Open
Abstract
Recent advancements in molecular biology, particularly regarding massively parallel sequencing technologies, have enabled scientists to gain more insight into the physiology of ticks. While there has been progress in identifying tick proteins and the pathways they are involved in, the specificities of tick-host interaction at the molecular level are not yet fully understood. Indeed, the development of effective commercial tick vaccines has been slower than expected. While omics studies have pointed to some potential vaccine immunogens, selecting suitable antigens for a multi-antigenic vaccine is very complex due to the participation of redundant molecules in biological pathways. The expansion of ticks and their pathogens into new territories and exposure to new hosts makes it necessary to evaluate vaccine efficacy in unusual and non-domestic host species. This situation makes ticks and tick-borne diseases an increasing threat to animal and human health globally, demanding an urgent availability of vaccines against multiple tick species and their pathogens. This review discusses the challenges and advancements in the search for universal tick vaccines, including promising new antigen candidates, and indicates future directions in this crucial research field.
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Affiliation(s)
- Luís Fernando Parizi
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre 91501-970, Brazil
| | | | - Carlos Logullo
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-853, Brazil
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-853, Brazil
| | - Jinlin Zhou
- Key Laboratory of Animal Parasitology of Ministry of Agriculture, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Misao Onuma
- Department of Infectious Diseases, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo 060-0818, Japan
| | - Carlos Termignoni
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre 91501-970, Brazil
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-853, Brazil
- Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul, Porto Alegre 90040-060, Brazil
| | - Itabajara da Silva Vaz
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre 91501-970, Brazil
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-853, Brazil
- Faculdade de Veterinária, Universidade Federal do Rio Grande do Sul, Porto Alegre 91540-000, Brazil
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48
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Malgwi SA, Ogunsakin RE, Oladepo AD, Adeleke MA, Okpeku M. A Forty-Year Analysis of the Literature on Babesia Infection (1982-2022): A Systematic Bibliometric Approach. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:6156. [PMID: 37372744 DOI: 10.3390/ijerph20126156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 05/14/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023]
Abstract
Babesia infection is a tick-borne protozoan disease associated with significant veterinary, economic, and medical importance. This infection affects many hosts, ranging from wild to domestic animals and including man. All vertebrates serve as potential carriers due to the huge diversity of the species. Babesiosis has been associated with severe economic loss in livestock production, especially in cattle farming, and is also a major public health concern in man, which could be fatal. The infection is usually opportunistic, ranging from asymptomatic to symptomatic, usually in immunocompromised subjects or under conditions of stressful management. This study was designed to uncover trends in relation to publication growth and further explore research output regarding babesiosis from data indexed in the WoS. The WoS is the only platform used to map publications on Babesia infection. The search term "babesiosis" or "Babesia infection" was used to extract articles published across the study period from 1982 to 2022. The inclusion criteria were restricted to only articles for the analysis. The results from the search query showed that a total of 3763 articles were published during the study period with an average of 91.70 ± 43.87 articles annually and an average total citation (n = 1874.8). An annual growth rate of 2.5% was recorded during the study period. The year 2021 had the highest number of published articles (n = 193, 5.1%) and citations (n = 7039). The analysis of the most relevant keywords and titles showed that infection (n = 606, 16.1%), babesiosis (n = 444, 11.7%), and Babesia (n = 1302, 16%) were the most relevant keyword plus (ID), author keyword (DE), and title, respectively. The common conceptual framework analysis through K-means clustering showed two clusters comprising 4 and 41 elements, respectively. The United States of America is the top-performing country in terms of article production (n = 707, 20.8%) and the leading funder for babesiosis research, with two of its agencies ranked at the top. These are the Department of Health and Human Services (n = 254, 6.7%) and the National Institute of Health (n= 238,6.3%). Igarashi I. is the top-performing author (n = 231, 6.1%), while Veterinary Parasitology is ranked the top journal (n = 393, 10.4%) in terms of babesiosis publications. Overall, an increase in publications was observed in the study period, with significant output from developed nations.
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Affiliation(s)
- Samson Anjikwi Malgwi
- Discipline of Genetics, School of Life Sciences, University of Kwa-Zulu Natal, Westville, Durban 4000, South Africa
| | - Ropo Ebenezer Ogunsakin
- Biostatistics Unit, Discipline of Public Health Medicine, School of Nursing & Public Health, College of Health Sciences, University of Kwa-Zulu Natal, Durban 4000, South Africa
| | - Abolade David Oladepo
- Discipline of Genetics, School of Life Sciences, University of Kwa-Zulu Natal, Westville, Durban 4000, South Africa
| | - Matthew Adekunle Adeleke
- Discipline of Genetics, School of Life Sciences, University of Kwa-Zulu Natal, Westville, Durban 4000, South Africa
| | - Moses Okpeku
- Discipline of Genetics, School of Life Sciences, University of Kwa-Zulu Natal, Westville, Durban 4000, South Africa
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49
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Mohseni N, Chang M, Garcia K, Weakley M, Do T, Mir S. Development of a Syndromic Molecular Diagnostic Assay for Tick-Borne Pathogens Using Barcoded Magnetic Bead Technology. Microbiol Spectr 2023; 11:e0439522. [PMID: 37166314 PMCID: PMC10269837 DOI: 10.1128/spectrum.04395-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 04/22/2023] [Indexed: 05/12/2023] Open
Abstract
Infectious disease diagnostics often depend on costly serological testing with poor sensitivity, low specificity, and long turnaround time. Here, we demonstrate proof of the principle for simultaneous detection of two tick-borne pathogens from a single test sample using barcoded magnetic bead technology on the BioCode 2500 system. Specific primer sets complementary to the conserved genes of Anaplasma phagocytophilum and Borrelia burgdorferi were used in PCR amplification of the target, followed by the hybridization of the resulting biotinylated PCR products with specific probes tethered to the barcoded magnetic beads for simultaneous detection, using a fluorophore with high quantum yield. The assay has an extremely high signal to background ratio, with a limit of detection (LOD) of 2.81 50% tissue culture infection dose (TCID50)/mL and 1 CFU/mL for A. phagocytophilum and B. burgdorferi, respectively. The observed LOD for gene blocks was 1.8 copies/reaction for both the pathogens. The assay demonstrated 100% positive and negative agreement on performance evaluation using patient specimens and blood samples spiked with 1 × LOD of pathogen stock. No cross-reactivity was observed with other related tick-borne pathogens and genomic DNA of human, cattle, and canine origin. The assay can be upgraded to a sensitive and cost-effective multiplex diagnostic approach that can simultaneously detect multiple clinically important tick-borne pathogens in a single sample with a short turnaround time. IMPORTANCE The low pathogen load in the tick-borne disease test samples and the lack of highly sensitive multiplex diagnostic approaches have impacted diagnosis during clinical testing and limited surveillance studies to gauge prior insight about the prevalence of tick-borne infections in a geographical area. This article demonstrates proof of the principle for simultaneous detection of two important tick-borne pathogens from a single test sample using digital barcoded magnetic bead technology. Using a fluorophore of high quantum yield, the diagnostic approach showed high sensitivity and specificity. The LOD was 1.8 genome copies per reaction for both A. phagocytophilum and B. burgdorferi. The assay can be upgraded for the detection of all clinically important tick-borne pathogens from a single patient sample with high sensitivity and specificity. The assay can provide a diagnostic answer to the clinician in a short turnaround time to facilitate speedy therapeutic intervention to infected patients and implement public health measures to prevent community spread.
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Affiliation(s)
- Nazleeen Mohseni
- College of Veterinary Medicine, Western University of Health Sciences, Pomona, California, USA
| | - Mariann Chang
- College of Veterinary Medicine, Western University of Health Sciences, Pomona, California, USA
| | - Kathryn Garcia
- College of Veterinary Medicine, Western University of Health Sciences, Pomona, California, USA
| | - Mina Weakley
- College of Veterinary Medicine, Western University of Health Sciences, Pomona, California, USA
| | - Tram Do
- College of Veterinary Medicine, Western University of Health Sciences, Pomona, California, USA
| | - Sheema Mir
- College of Veterinary Medicine, Western University of Health Sciences, Pomona, California, USA
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50
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Mahesh PP, Namjoshi P, Sultana H, Neelakanta G. Immunization against arthropod protein impairs transmission of rickettsial pathogen from ticks to the vertebrate host. NPJ Vaccines 2023; 8:79. [PMID: 37253745 DOI: 10.1038/s41541-023-00678-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 05/16/2023] [Indexed: 06/01/2023] Open
Abstract
Human anaplasmosis caused by Anaplasma phagocytophilum is one of the most common tick-borne diseases in the United States. The black-legged ticks, Ixodes scapularis, vector and transmit this bacterium to humans. In this study, we provide evidence that targeting I. scapularis membrane-bound organic anion transporting polypeptide 4056 (IsOATP4056) with an anti-vector vaccine affects transmission of A. phagocytophilum from ticks to the vertebrate host. Anaplasma phagocytophilum induces expression of IsOATP4056 in ticks and tick cells. Increased membrane localization of IsOATP4056 was evident in A. phagocytophilum-infected tick cells. Treatment with high dose (10 µg/ml) but not low dose (5 µg/ml) of EL-6 antibody that targets the largest extracellular loop of IsOATP4056 showed cytotoxic effects in tick cells but not in human keratinocyte cell line (HaCaT). Passive immunization, tick-mediated transmission and in vitro studies performed with mice ordered from two commercial vendors and with tick cells showed that EL-6 antibody not only impairs A. phagocytophilum transmission from ticks to the murine host but also aids in the reduction in the bacterial loads within engorged ticks and in tick cells by activation of arthropod Toll pathway. Furthermore, reduced molting efficiency was noted in ticks fed on EL-6 antibody-immunized mice. Collectively, these results provide a good candidate for the development of anti-tick vaccine to target the transmission of A. phagocytophilum and perhaps other tick-borne pathogens of medical importance.
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Affiliation(s)
- P P Mahesh
- Department of Biomedical and Diagnostic Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN, USA
| | - Prachi Namjoshi
- Department of Biomedical and Diagnostic Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN, USA
| | - Hameeda Sultana
- Department of Biomedical and Diagnostic Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN, USA
| | - Girish Neelakanta
- Department of Biomedical and Diagnostic Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN, USA.
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