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Cáceres Munar BA, Urbina A, Ortíz T, Rodríguez A, Fernández OL, Ospina LF, Flórez I, Uribe D, Alvarado C, Calvo EP, Delgado FG, Castellanos JE. High prevalence of dengue, Zika, and chikungunya viruses in blood donors during a dengue outbreak and an endemic period in Colombia. Front Med (Lausanne) 2024; 11:1380129. [PMID: 38751980 PMCID: PMC11094337 DOI: 10.3389/fmed.2024.1380129] [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: 02/01/2024] [Accepted: 04/02/2024] [Indexed: 05/18/2024] Open
Abstract
Objective Arboviruses pose a challenge in ensuring the supply of pathogen-free blood components because they are not routinely screened in blood banks, and blood components from infected asymptomatic donors could be transfused. This study aimed to detect and characterize arboviral infections in Colombian blood donors. Methods In a cross-sectional study, the prevalence of dengue (DENV), Zika (ZIKV), and chikungunya (CHIKV) viruses and co-infections of blood donors were compared between an epidemic period (November 2019-February 2020, n = 462) and an endemic period (November 2021-August 2022, n = 1,119). Viral RNA from each donor serum was purified, and the viruses were detected using a previously standardized multiplex hemi-nested RT-PCR protocol. Subsequently, donors who tested positive were surveyed 15 days after the detection of the virus to identify clinical characteristics related to the arboviral infection. The prevalences of each virus were presented as percentages and compared between epidemic and endemic periods. Results Significantly higher prevalences were found in the epidemic period compared with the endemic period for DENV (14.5 vs. 1.9%), ZIKV (7.8 vs. 0.3%), CHIKV (8 vs. 3.3%), and co-infections (4.3 vs. 0.2%). The survey response rate of positive donors in the two periods was 83/175 (47%). In total, 57% of the donors surveyed were asymptomatic. Symptomatic donors most frequently reported headache (31%), malaise (13%), arthralgia (10%), and fever/chills (8%). Conclusion The prevalence observed in epidemic and endemic periods was higher than that reported in other studies in the Americas. The high proportion of asymptomatic cases found, in addition to the mild and nonspecific manifestations among the symptomatic, may limit the effectiveness of the donor selection criteria used to mitigate the risk of transfusion-transmitted arboviruses.
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Affiliation(s)
| | | | - Tatiana Ortíz
- Banco Nacional de Sangre Cruz Roja Colombiana, Bogotá, Colombia
| | - Ayda Rodríguez
- Banco Nacional de Sangre Cruz Roja Colombiana, Bogotá, Colombia
| | | | | | - Iris Flórez
- Banco de Sangre Bolívar, Cruz Roja Colombiana, Cartagena, Colombia
| | - Dora Uribe
- Hemocentro del Café, Cruz Roja Colombiana, Manizales, Colombia
| | - Celia Alvarado
- Banco de Sangre Antioquia, Cruz Roja Colombiana, Medellín, Colombia
| | - Eliana Patricia Calvo
- Grupo de Virología, Vicerrectoría de Investigaciones, Universidad El Bosque, Bogotá, Colombia
| | - Félix Giovanni Delgado
- Grupo de Virología, Vicerrectoría de Investigaciones, Universidad El Bosque, Bogotá, Colombia
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Bhardwaj P, Sah K, Yadav V, Gulafshan S, Dhangur P, Srivastava U, Dwivedi GR, Murhekar M, Sharma B, Singh R. Molecular and serological evidence of chikungunya virus infection with high case fatality among pediatric population with acute encephalitis syndrome: first report from Eastern Uttar Pradesh, India. Eur J Clin Microbiol Infect Dis 2024:10.1007/s10096-024-04817-8. [PMID: 38557925 DOI: 10.1007/s10096-024-04817-8] [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: 03/01/2024] [Accepted: 03/20/2024] [Indexed: 04/04/2024]
Abstract
Acute encephalitis syndrome (AES) outbreaks in children of Eastern Uttar Pradesh (E-UP) region of India have been a longstanding public health issue, with a significant case fatality rate of 20-25%. Since past decade, a rise in chikungunya (CHIK) cases has been occurring, which is a reported etiology of AES. However, the burden of chikungunya virus (CHIKV) among pediatric AES (pAES) is unknown from E-UP. We included 238 hospitalized pAES cases. The presence of IgM antibodies for CHIKV, and Dengue virus (DENV) was tested, and RT-PCR was performed for CHIKV and DENV in serologically confirmed CHIKV and DENV pAES cases. Positive samples were sequenced using Sangers sequencing. Further, to check for co-infection, IgM antibodies for other AES etiologies including Japanese encephalitis virus (JEV), Leptospira and Orientia tsutsugamushi (OT) in serum were also investigated. IgM ELISA demonstrated 5.04% (12) positivity for CHIKV. Among CHIKV IgM positive, 3 (25%, 3/12) pAES patients died. CHIKV genome was detected in 3 pAES specimens. Among which, 2 CHIKV cases were also positive for OT DNA. Partially sequenced CHIKV were genotyped as ECSA. The overall finding indicates evidence of CHIKV infection with high case fatality among pAES patients from E-UP. This study advocates constant serological and molecular surveillance of CHIKV in AES endemic regions of India.
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Affiliation(s)
- Pooja Bhardwaj
- ICMR-Regional Medical Research Centre Gorakhpur, BRD medical college campus, Gorakhpur, 273013, India.
| | - Kamlesh Sah
- ICMR-Regional Medical Research Centre Gorakhpur, BRD medical college campus, Gorakhpur, 273013, India
| | - Vishal Yadav
- ICMR-Regional Medical Research Centre Gorakhpur, BRD medical college campus, Gorakhpur, 273013, India
| | - Shahzadi Gulafshan
- ICMR-Regional Medical Research Centre Gorakhpur, BRD medical college campus, Gorakhpur, 273013, India
| | - Preeti Dhangur
- ICMR-Regional Medical Research Centre Gorakhpur, BRD medical college campus, Gorakhpur, 273013, India
| | - Utkarsh Srivastava
- ICMR-Regional Medical Research Centre Gorakhpur, BRD medical college campus, Gorakhpur, 273013, India
| | - Gaurav Raj Dwivedi
- ICMR-Regional Medical Research Centre Gorakhpur, BRD medical college campus, Gorakhpur, 273013, India
| | - Manoj Murhekar
- ICMR-Regional Medical Research Centre Gorakhpur, BRD medical college campus, Gorakhpur, 273013, India
- ICMR - National Institute of Epidemiology, Chennai, 600 077, India
| | - Bhupendra Sharma
- Department of Paediatrics, BRD Medical College, Gorakhpur, 273013, India
| | - Rajeev Singh
- ICMR-Regional Medical Research Centre Gorakhpur, BRD medical college campus, Gorakhpur, 273013, India.
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Calderón-Peláez MA, Mantilla-Granados JS, Velandia-Romero ML, Calvo E, Castellanos JE, Olano VA. A strategy for entomo-virological surveillance of yellow fever, dengue, zika, and chikungunya viruses in field-collected mosquitoes. MethodsX 2023; 11:102356. [PMID: 37701736 PMCID: PMC10493583 DOI: 10.1016/j.mex.2023.102356] [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: 02/27/2023] [Accepted: 08/30/2023] [Indexed: 09/14/2023] Open
Abstract
Arboviruses transmitted by Culicidae insects are significant threats to human health, presenting dynamic transmission cycles and involving different vectors and hosts. The surveillance and characterization of the vectors involved in these cycles are crucial for understanding and preventing potential outbreaks. Therefore, we propose a strategy that we used for entomological surveillance of urban, rural, and sylvatic mosquitoes and to characterize natural infection by four major arboviruses.•Immature and adult mosquitoes were collected intra, peri and extradomicilie of urban and rural households, using different collection methodologies.•Mosquitoes were pooled or separated in head-thorax and abdomen, according to the species.•A multiplex nested RT-PCR (Reverse transcription polymerase chain reaction) method was used for the simultaneous detection of dengue virus (DENV), zika virus (ZIKV), chikungunya virus (CHIKV), and yellow fever virus (YFV).Overall, this strategy proved helpful for vectors surveillance at different ecosystems, as well as for implementing a low-cost molecular surveillance system that allows the early detection of potential outbreaks, and identify other potential vectors involved in viral transmission.
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Affiliation(s)
| | - Juan S. Mantilla-Granados
- Vicerrectoría de Investigaciones, Saneamiento Ecológico, Salud y Medio Ambiente, Universidad El Bosque, Bogotá 110121, Colombia
| | | | - Eliana Calvo
- Vicerrectoría de Investigaciones, Grupo de Virología, Universidad El Bosque, Bogotá 110121, Colombia
| | - Jaime E. Castellanos
- Vicerrectoría de Investigaciones, Grupo de Virología, Universidad El Bosque, Bogotá 110121, Colombia
| | - Víctor Alberto Olano
- Vicerrectoría de Investigaciones, Saneamiento Ecológico, Salud y Medio Ambiente, Universidad El Bosque, Bogotá 110121, Colombia
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Coronel-Ruiz C, Velandia-Romero ML, Calvo E, Camacho-Ortega S, Parra-Alvarez S, Beltrán EO, Calderón-Pelaez MA, Porras-Ramírez A, Cortés-Muñoz F, Rojas-Hernandez JP, Velasco-Alvarez S, Pinzón-Junca A, Castellanos JE. Improving dengue diagnosis and case confirmation in children by combining rapid diagnostic tests, clinical, and laboratory variables. FRONTIERS IN TROPICAL DISEASES 2023. [DOI: 10.3389/fitd.2023.1118774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2023] Open
Abstract
BackgroundDengue is the most widely distributed arboviral disease in tropical and subtropical countries. Most suspected cases are diagnosed according to the clinical criteria, and early diagnosis is difficult. Moreover, in underdeveloped countries, several factors continue to challenge the diagnosis and surveillance of dengue cases. This study aimed to design a diagnostic algorithm using rapid diagnostic tests (RDTs), ELISA tests, and clinical and hematological variables to confirm dengue cases in febrile patients in Colombia.MethodsAltogether, 505 samples were collected. Serum samples were evaluated by RDTs (IgM and IgG antibodies and NS1 antigen), capture IgM and IgG ELISAs, and endpoint hemi-nested RT-PCR assay (qualitative). We statistically analyzed the performance of individual tests to determine the most useful ones to confirm dengue cases accurately.ResultsIndividual results for IgM, IgG, and NS1 RDTs yielded lower sensitivity and specificity values than the reference standard. High sensitivity and specificity were obtained after combining IgM and NS1 ELISA results (96.3% and 96.4%) and NS1 RDT plus IgM ELISA results (90.3% and 96.2%), respectively. Adjusted odds ratios (aORs) were calculated for clinical variables and laboratory tests to differentiate dengue from other febrile illnesses (OFI). This approach showed that myalgia, abdominal tenderness, and platelet count were identified with higher sensitivity to confirm dengue cases. IgM RDT and NS1 RDT differentiated dengue cases from OFI. A positive IgM RDT or a positive NS1 RDT combined with specific signs or symptoms confirmed 81.6% of dengue cases. A combination of clinical findings and a positive NS1 RDT or positive ELISA IgM confirmed 90.6% of the cases.ConclusionOur findings showed that clinical diagnoses in pediatric population alone cannot confirm true dengue cases and needs to be complemented by laboratory diagnostic tests. We also demonstrate the usefulness of combining clinical criteria with RDTs, suggesting that their implementation with the IgM ELISA test improves dengue case confirmation.
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Mantilla-Granados JS, Sarmiento-Senior D, Manzano J, Calderón-Peláez MA, Velandia-Romero ML, Buitrago LS, Castellanos JE, Olano VA. Multidisciplinary approach for surveillance and risk identification of yellow fever and other arboviruses in Colombia. One Health 2022; 15:100438. [PMID: 36277089 PMCID: PMC9582556 DOI: 10.1016/j.onehlt.2022.100438] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/28/2022] [Accepted: 09/28/2022] [Indexed: 11/16/2022] Open
Affiliation(s)
- Juan S. Mantilla-Granados
- Universidad El Bosque, Vicerrectoría de Investigación, Saneamiento Ecológico, Salud y Medio Ambiente, Bogotá, Colombia
- Corresponding author.
| | - Diana Sarmiento-Senior
- Universidad El Bosque, Vicerrectoría de Investigación, Saneamiento Ecológico, Salud y Medio Ambiente, Bogotá, Colombia
| | - Jaime Manzano
- Universidad El Bosque, Vicerrectoría de Investigación, Saneamiento Ecológico, Salud y Medio Ambiente, Bogotá, Colombia
| | | | | | - Luz Stella Buitrago
- Secretaría de Salud del Meta, Laboratorio de Salud Pública, Laboratorio de Entomología, Villavicencio, Colombia
| | - Jaime E. Castellanos
- Universidad El Bosque, Vicerrectoría de Investigación, Grupo de Virología, Bogotá, Colombia
| | - Víctor Alberto Olano
- Universidad El Bosque, Vicerrectoría de Investigación, Saneamiento Ecológico, Salud y Medio Ambiente, Bogotá, Colombia
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Species distribution models applied to mosquitoes: Use, quality assessment, and recommendations for best practice. Ecol Modell 2022. [DOI: 10.1016/j.ecolmodel.2022.110073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Gopinath PM, Darekar AS, Kanimozhi S, Mukherjee A, Chandrasekaran N. Female mosquito-a potential vector for transporting plastic residues to humans. CHEMOSPHERE 2022; 301:134666. [PMID: 35452648 DOI: 10.1016/j.chemosphere.2022.134666] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 04/02/2022] [Accepted: 04/17/2022] [Indexed: 06/14/2023]
Abstract
With the prodigious use of plastics in the industrial sector and daily life, plastic has become one of the fastest-growing sources of pollution in the aquatic environment. Therefore, ingestion of micro/nanoplastics (MP/NPs) by aquatic organisms is inevitable. But the knowledge on the definite effect, ontogenetic transfer, and translocation of NPs remains incipient. Thus, this study examines the abundance of MPs in mosquito larvae collected from the sewage pit. Additionally, this study demonstrates the MPs-mediated biochemical alterations and effects on development of mosquito, and then ontogenetic transfer and translocation of NPs in Aedes aegypti. Totally 1241 MPs belonging to polyethylene, polycarbonate, polypropylene, polystyrene, polyvinyl chloride and nylon with sizes ranging from 0.5 μm to 80 μm in diameter were isolated from the mosquito larvae. Indeed all the four stages of mosquito larvae feed on NPs and subsequently transfer them to non-feeding pupa and then to flying adult mosquitoes, further to the offspring. However, the NPs exposure and accumulation did not affect the survival of mosquitoes, but altered the biochemical constituents, thereby delaying the development of mosquitoes. Notably the female mosquitoes that emerged from the NPs treatment group showed increased blood-feeding activity and increased starvation resistance capacity. The puzzling accumulation of NPs/residues in different organs, especially in the salivary gland signifies that female mosquitoes could potentially inject polymer residues into humans and animals. At the outset, these observations emphasize that the mosquitoes act as a vector of NPs in the aqueous environment and transport them to terrestrial animals.
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Affiliation(s)
| | - Ankita Shivaji Darekar
- Centre for Nanobiotechnology, Vellore Institute of Technology (VIT), Vellore, 632 014, Tamil Nadu, India
| | - Subramanian Kanimozhi
- Centre for Nanobiotechnology, Vellore Institute of Technology (VIT), Vellore, 632 014, Tamil Nadu, India
| | - Amitava Mukherjee
- Centre for Nanobiotechnology, Vellore Institute of Technology (VIT), Vellore, 632 014, Tamil Nadu, India
| | - Natarajan Chandrasekaran
- Centre for Nanobiotechnology, Vellore Institute of Technology (VIT), Vellore, 632 014, Tamil Nadu, India.
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Zou M, Su C, Li T, Zhang J, Li D, Luan N, Ma D, Liu J, Sun Q, Peng X, Liu H. Genetic Characterization of Chikungunya Virus Among Febrile Dengue Fever–Like Patients in Xishuangbanna, Southwestern Part of China. Front Cell Infect Microbiol 2022; 12:914289. [PMID: 35832380 PMCID: PMC9271616 DOI: 10.3389/fcimb.2022.914289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 05/19/2022] [Indexed: 11/14/2022] Open
Abstract
Co-infection of chikungunya virus (CHIKV) has been recently reported during dengue fever epidemics. However, the infection of CHIKV is often neglected due to its misdiagnosis as dengue virus (DENV) infection. In the summer of 2019 when dengue fever was epidemic, we collected 697 serum samples from febrile dengue fever–like patients in Xishuangbanna, southwestern part of China. DENV RNA was detectable in 99.42% of these patients. Notably, 88 patients (12.62%) showed the presence of CHIKV RNA, among which 86 patients were co-infected with DENV and CHIKV. We sequenced and analyzed the full genome of CHIKV virus in four out of 88 samples (two CHIKV infected and two co-infected). The results suggested that the four strains were all Asian genotype and had the highest homology (99.4%) with the SZ1239 strain (accession number MG664851) isolated in 2012 and possibly introduced from Indonesia. Further comparison with the conserved sequences in the whole genome of 47 strains of CHIKV showed that there were 13 and 15 amino acid mutants in structural proteins and non-structural proteins, respectively. The previously reported adaptive mutations of E2-W64R, E2-I211T, E2-K233E, E1-A98T, and E1-K211E occurred in the four strains of this study. In conclusion, this study reports a co-infection of CHIKV during the DENV epidemic in the city Xishuangbanna, 2019. Molecular epidemiology revealed that CHIKV identified in this study was indigenous and belongs to Asian lineage with lineage-specific mutations and some reported adaptive mutations, which is distinct from the recently reported CHIKV (East/Central/South African) in Ruili, the city next to Xishuangbanna.
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Affiliation(s)
- Meng Zou
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical School, Kunming, China
| | - Chunyan Su
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical School, Kunming, China
| | - Tingting Li
- Joint Laboratory for Prevention and Control of Cross-border Transmission Disease, People’s Hospital of Xishuangbanna Dai Autonomous Prefecture, Jinghong, China
| | - Jing Zhang
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical School, Kunming, China
| | - Daiying Li
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical School, Kunming, China
| | - Ning Luan
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical School, Kunming, China
| | - Dehong Ma
- Joint Laboratory for Prevention and Control of Cross-border Transmission Disease, People’s Hospital of Xishuangbanna Dai Autonomous Prefecture, Jinghong, China
| | - Jiansheng Liu
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical School, Kunming, China
| | - Qiangming Sun
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical School, Kunming, China
| | - Xiaozhong Peng
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical School, Kunming, China
- State Key Laboratory of Medical Molecular Biology, Department of Molecular Biology and Biochemistry, Institute of Basic Medical Sciences, Medical Primate Research Center, Neuroscience Center, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Hongqi Liu
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical School, Kunming, China
- *Correspondence: Hongqi Liu,
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Differential detection of zika virus based on PCR. J Virol Methods 2022; 301:114459. [PMID: 35007627 DOI: 10.1016/j.jviromet.2022.114459] [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: 07/28/2021] [Revised: 12/15/2021] [Accepted: 01/05/2022] [Indexed: 11/21/2022]
Abstract
Tropical countries are highly prone to infectious diseases such as the one caused by zika virus. Infection by zika is clinically and epidemiologically highly relevant. For example, when women are infected by zika during the first trimester of pregnancy, the child incurs a high risk of microcephaly and acute neurological syndromes. In adults, the virus is associated with the Guillain-Barré syndrome and other disorders. The worldwide emergency caused by zika in 2013/14 demonstrated the need for rapid and accurate diagnostic tools for the virus. Current diagnostic methods include virus isolation, serological tests, and molecular assays. However, virus isolation requires labor-intensive and time-consuming cell culture; serological detection suffers from cross-reactivity caused by previous exposure to homologous arboviruses that cause symptoms like those caused by zika, while molecular tools commonly are not designed for differential zika detection. This work reports on developing a specific molecular detection method based on phylogenetically conserved primers designed for the specific diagnosis of the zika virus. The zika primers were systematically selected through a rigorous bioinformatic analysis and demonstrated the capability to be highly specific. We tested our primers on synthetic DNA, cell cultures and samples from patients infected with zika, dengue and chikungunya and found that they detected zika with specificity high enough for differential virus diagnosis.
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Abstract
El virus de chikunguña (CHIKV) es un Alfavirus perteneciente al grupo denominado del Viejo Mundo; estos son virus artritogénicos que causan una enfermedad febril caracterizada por artralgias y mialgias. Aunque la muerte por CHIKV es poco frecuente, la enfermedad puede llegar a ser incapacitante y generar un amplio espectro de manifestaciones atípicas, como complicaciones cardiovasculares, respiratorias, oculares, renales y dérmicas, entre otras. Cuando el dolor articular persiste por tres o más meses, da lugar a la forma crónica de la enfermedad denominada reumatismo inflamatorio crónico poschikunguña, el cual es la principal secuela de la enfermedad. Se considera que este virus no es neurotrópico, sin embargo, puede afectar el sistema nervioso central y generar secuelas graves y permanentes, principalmente, en niños y ancianos. En África, Asia y Europa se habían reportado anteriormente brotes epidémicos por CHIKV, pero solo hasta finales del 2013 se documentó la introducción del virus a las Américas; desde entonces, el virus se ha propagado a 45 países o territorios del continente y el número de casos acumulados ascendió a cerca de dos millones en dos años. Esta revisión describe de manera general la biología molecular del virus, sus manifestaciones clínicas, su patogénesis y las principales complicaciones posteriores a la infección. Además, reúne la información de la epidemia en Colombia y el continente americano publicada entre el 2014 y el 2020.
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Sharif N, Sarkar MK, Ferdous RN, Ahmed SN, Billah MB, Talukder AA, Zhang M, Dey SK. Molecular Epidemiology, Evolution and Reemergence of Chikungunya Virus in South Asia. Front Microbiol 2021; 12:689979. [PMID: 34163459 PMCID: PMC8215147 DOI: 10.3389/fmicb.2021.689979] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 05/10/2021] [Indexed: 11/23/2022] Open
Abstract
Chikungunya virus (CHIKV) is a vector (mosquito)-transmitted alphavirus (family Togaviridae). CHIKV can cause fever and febrile illness associated with severe arthralgia and rash. Genotypic and phylogenetic analysis are important to understand the spread of CHIKV during epidemics and the diversity of circulating strains for the prediction of effective control measures. Molecular epidemiologic analysis of CHIKV is necessary to understand the complex interaction of vectors, hosts and environment that influences the genotypic evolution of epidemic strains. In this study, different works published during 1950s to 2020 concerning CHIKV evolution, epidemiology, vectors, phylogeny, and clinical outcomes were analyzed. Outbreaks of CHIKV have been reported from Bangladesh, Bhutan, India, Pakistan, Sri Lanka, Nepal, and Maldives in South Asia during 2007–2020. Three lineages- Asian, East/Central/South African (ECSA), and Indian Ocean Lineage (IOL) are circulating in South Asia. Lineage, ECSA and IOL became predominant over Asian lineage in South Asian countries during 2011–2020 epidemics. Further, the mutant E1-A226V is circulating in abundance with Aedes albopictus in India, Bangladesh, Nepal, and Bhutan. CHIKV is underestimated as clinical symptoms of CHIKV infection merges with the symptoms of dengue fever in South Asia. Failure to inhibit vector mediated transmission and predict epidemics of CHIKV increase the risk of larger global epidemics in future. To understand geographical spread of CHIKV, most of the studies focused on CHIKV outbreak, biology, pathogenesis, infection, transmission, and treatment. This updated study will reveal the collective epidemiology, evolution and phylogenies of CHIKV, supporting the necessity to investigate the circulating strains and vectors in South Asia.
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Affiliation(s)
- Nadim Sharif
- Department of Microbiology, Jahangirnagar University, Savar, Bangladesh
| | | | - Rabeya Nahar Ferdous
- Department of Microbiology, Bangladesh University of Health Sciences, Dhaka, Bangladesh
| | | | - Md Baki Billah
- Department of Zoology, Jahangirnagar University, Savar, Bangladesh
| | - Ali Azam Talukder
- Department of Microbiology, Jahangirnagar University, Savar, Bangladesh
| | - Ming Zhang
- Department of Epidemiology and Biostatistics, College of Public Health, University of Georgia, Athens, GA, United States
| | - Shuvra Kanti Dey
- Department of Microbiology, Jahangirnagar University, Savar, Bangladesh
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Eligio-García L, Crisóstomo-Vázquez MDP, Caballero-García MDL, Soria-Guerrero M, Méndez–Galván JF, López-Cancino SA, Jiménez-Cardoso E. Co-infection of Dengue, Zika and Chikungunya in a group of pregnant women from Tuxtla Gutiérrez, Chiapas: Preliminary data. 2019. PLoS Negl Trop Dis 2020; 14:e0008880. [PMID: 33347432 PMCID: PMC7785221 DOI: 10.1371/journal.pntd.0008880] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 01/05/2021] [Accepted: 10/13/2020] [Indexed: 12/22/2022] Open
Abstract
INTRODUCTION Dengue, Zika and Chikungunya are RNA Arboviruses present in some areas of Mexico, mainly in the endemic state of Chiapas that is characterized by presence of the vector that transmit them and an ecology that favors high transmission. According to the national epidemiological surveillance system, Dengue has intensified since 2018 and outbreaks continue in various states while for Zika and Chikungunya a decrease in cases has been reported in recent years. The main objective of this study was to determine the incidence of Dengue, Zika and Chikungunya infections during pregnancy in the state of Chiapas. PRINCIPAL FINDINGS The presence of previous and current infections and coinfections diagnosed by molecular (RT-PCR) and immunological (ELISA for IgG determination) techniques indicates a wide circulation of viruses in asymptomatic people, specifically in pregnant women showing that silent infections in dry season contributes to the preservation of viruses. CONCLUSIONS From 136 studied samples, 27.7% tested positive for DENV, 8% for ZIKV and 24.1% for CHIKV by RTPCR and the values of IgG in sera show that 83.9% were positive for IgG antibodies against DENV, 65% against ZIKV and 59.1% against CHIKV. Results demonstrated presence of ZIKV and CHIKV, not detected by the epidemiological surveillance system, so the importance of establishing proactive epidemiological systems more strict, especially because these infections in pregnant women can cause severe health problems for newborn children.
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Affiliation(s)
- Leticia Eligio-García
- Laboratorio de Investigación en Parasitología. Hospital Infantil de México “Federico Gómez”. CdMx. México
| | | | | | - Mariana Soria-Guerrero
- Laboratorio de Investigación en Parasitología. Hospital Infantil de México “Federico Gómez”. CdMx. México
| | | | | | - Enedina Jiménez-Cardoso
- Laboratorio de Investigación en Parasitología. Hospital Infantil de México “Federico Gómez”. CdMx. México
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Castellanos JE, Jaimes N, Coronel-Ruiza C, Rojas JP, Mejía LF, Villarreal VH, Maya LE, Claros LM, Orjuela C, Calvo E, Muñoz MV, Velandia-Romero ML. Dengue-chikungunya coinfection outbreak in children from Cali, Colombia in 2018-2019. Int J Infect Dis 2020; 102:97-102. [PMID: 33075526 DOI: 10.1016/j.ijid.2020.10.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 10/07/2020] [Accepted: 10/08/2020] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVE To identify the arbovirus involved in febrile cases identified in a pediatric clinic in Cali, Valle del Cauca province, Colombia, and study the clinical characteristics. METHODS A descriptive, prospective study enrolled 345 febrile children for 12 months in a pediatric clinic. Medical record registers documenting signs and symptoms, and serum samples were analyzed to detect DENV, CHIKV, and ZIKV by reverse transcription-polymerase chain reaction and serology methods. Diagnosis at the time of admission and discharge were compared based on laboratory test results. RESULTS All patients were diagnosed as severe dengue at admission. Molecular detection and serology tests identified 143 CHIKV-positive (41.4%), 20 DENV-positive (5.8%), and 123 DENV-CHIKV coinfection patients (35.7%). DENV or CHIKV serology test results of these double-infected patients yield poor performance to confirm patient cases. ZIKV infection was detected in 5 patients (1.4%), every time as double or triple infections. CONCLUSION . A sustained CHIKV circulation and transmission was confirmed causing febrile illness in children and indicating that this virus spreads even during the regular DENV season, leading to double infections and altering clinical symptoms. Specific clinical tests are necessary to closely identify the arbovirus involved in causing infectious diseases that can help in better treatment and mosquito-transmitted virus surveillance.
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Affiliation(s)
| | - Nayeli Jaimes
- Grupo de Virología, Universidad El Bosque, Bogotá, Colombia
| | - Carolina Coronel-Ruiza
- Grupo de Virología, Universidad El Bosque, Bogotá, Colombia; Fundación Clínica Infantil Club Noel, Cali, Colombia
| | | | - Luis F Mejía
- Fundación Clínica Infantil Club Noel, Cali, Colombia
| | | | - Luz E Maya
- Fundación Clínica Infantil Club Noel, Cali, Colombia
| | - Luz M Claros
- Fundación Clínica Infantil Club Noel, Cali, Colombia
| | - Cielo Orjuela
- Fundación Clínica Infantil Club Noel, Cali, Colombia
| | - Eliana Calvo
- Grupo de Virología, Universidad El Bosque, Bogotá, Colombia
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14
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Avilés-Vergara PA, Trujillo-Correa A, Gómez-Suárez LA, Ricardo-Caldera D, Soto-De León SC, Brango H, Tovar Acero C. DENV and ZIKV detection in patients with acute febrile syndrome in Córdoba, Colombia. Int J Infect Dis 2020; 99:458-465. [PMID: 32777585 DOI: 10.1016/j.ijid.2020.08.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 07/28/2020] [Accepted: 08/04/2020] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVE To determine simultaneous circulation of DENV serotypes and ZIKV in Córdoba, Colombia, during 2015 and 2016. MATERIAL AND METHODS A total of 294 samples from patients with clinical diagnosis of febrile syndrome compatible with dengue were collected between June 2015 and December 2016. All samples were tested for DENV and ZIKV by RT-PCR using C6/36 cells culture supernatant. RESULTS Thirty-three percent of the samples were positive (97/294); from these, 61.8% were positive for DENV and 31% were positive for Zika. The predominant serotype was DENV-2 (70.1%), followed by DENV-3 (8.9%), DENV-4 (6%), and DENV-1 (3%). DENV/ZIKV coinfection was identified in 7.2% of the cases associated with DENV-1 and DENV-3 serotypes. The confirmed cases of dengue, Zika, and DENV/ZIKV coinfections were clinically mild and self-limited. CONCLUSIONS We reported the co-circulation of all four DENV serotypes, with a higher frequency of DENV-2, and ZIKV introduction in Córdoba department-Colombia in August 2015. This scenario favored the appearance of DENV/ZIKV coinfections.
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Affiliation(s)
- Paula A Avilés-Vergara
- Grupo de investigación en Enfermedades Tropicales y Resistencia Bacteriana, Universidad del Sinú, Montería, Córdoba, Colombia.
| | | | - Luz A Gómez-Suárez
- Grupo de Investigación Biomédica y Biología Molecular, Universidad del Sinú, Montería, Córdoba, Colombia
| | - Dina Ricardo-Caldera
- Grupo de investigación en Enfermedades Tropicales y Resistencia Bacteriana, Universidad del Sinú, Montería, Córdoba, Colombia
| | - Sara C Soto-De León
- Grupo de investigación en Enfermedades Tropicales y Resistencia Bacteriana, Universidad del Sinú, Montería, Córdoba, Colombia
| | - Hugo Brango
- Departamento de Matemáticas y Estadística, Facultad de Ciencias Básica, Universidad de Córdoba, Colombia
| | - Catalina Tovar Acero
- Grupo de investigación en Enfermedades Tropicales y Resistencia Bacteriana, Universidad del Sinú, Montería, Córdoba, Colombia
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15
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Jorge FA, Thomazella MV, Castro Moreira D, Lopes LDG, Teixeira JJV, Bertolini DA. Evolutions and upcoming on Zika virus diagnosis through an outbreak: A systematic review. Rev Med Virol 2020; 30:e2105. [DOI: 10.1002/rmv.2105] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 03/12/2020] [Accepted: 03/15/2020] [Indexed: 12/20/2022]
Affiliation(s)
- Fernando A. Jorge
- Department of Clinical Analysis and BiomedicineState University of Maringá Maringá Brazil
| | - Mateus V. Thomazella
- Medical Research Laboratory, School of MedicineUniversity of São Paulo São Paulo Brazil
| | - Deborah Castro Moreira
- Department of Clinical Analysis and BiomedicineState University of Maringá Maringá Brazil
| | - Luciana D. G. Lopes
- Department of Clinical Analysis and BiomedicineState University of Maringá Maringá Brazil
| | - Jorge J. V. Teixeira
- Department of Clinical Analysis and BiomedicineState University of Maringá Maringá Brazil
| | - Dennis A. Bertolini
- Department of Clinical Analysis and BiomedicineState University of Maringá Maringá Brazil
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16
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Prevalence of dengue antibodies in healthy children and adults in different Colombian endemic areas. Int J Infect Dis 2020; 91:9-16. [DOI: 10.1016/j.ijid.2019.10.045] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 10/29/2019] [Accepted: 10/31/2019] [Indexed: 12/23/2022] Open
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17
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Lopez-Jimena B, Bakheit M, Bekaert M, Harold G, Frischmann S, Fall C, Diagne CT, Faye O, Faye O, Sall AA, Weidmann M. Development and Validation of Real-Time RT-LAMP Assays for the Specific Detection of Zika Virus. Methods Mol Biol 2020; 2142:147-164. [PMID: 32367366 DOI: 10.1007/978-1-0716-0581-3_13] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Two one-step real-time reverse transcription loop-mediated isothermal amplification (RT-LAMP) assays for the detection of Zika virus (ZIKV) were developed, based on two different primer design approaches: (1) open source, based on a combination of sequence diversity clustering (phylogeny and principal component analysis) and LAVA algorithm, using 45 whole genome ZIKV sequences retrieved from the National Center for Biotechnology Information (NCBI) database; (2) standard software for LAMP primer design (Primer Explorer V4), using 59 sequences of the ZIKV 3' UTR. The assays were firstly evaluated with External Quality Assessment panels from INSTAND e.V. (Germany) and EVD-LabNet (The Netherlands) including 4 and 12 unknown samples, respectively, and secondly, with 9 human, mosquito, and monkey ZIKV isolates from Africa (Senegal, Ivory Coast, and Uganda) and America (Brazil). The limit of detection as determined by probit analysis was 181 molecules for both RT-LAMP assays, and 100% reproducibility in the assays was obtained for 103 molecules (4/8 repetitions were positive for 102 molecules). Both assays were specific, amplifying only ZIKV RNA and not cross-detecting other arboviruses included in this study.
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Affiliation(s)
- Benjamin Lopez-Jimena
- Institute of Aquaculture, University of Stirling, Scotland, UK.
- Centre for Diagnostics Development, LifeArc, Scotland, UK.
| | | | - Michaël Bekaert
- Institute of Aquaculture, University of Stirling, Scotland, UK
| | - Graham Harold
- Institute of Aquaculture, University of Stirling, Scotland, UK
| | | | - Cheikh Fall
- Arbovirus and Viral Haemorrhagic Fever Unit, Institut Pasteur de Dakar, Dakar, Senegal
| | - Cheikh Tidiane Diagne
- Arbovirus and Viral Haemorrhagic Fever Unit, Institut Pasteur de Dakar, Dakar, Senegal
| | - Oumar Faye
- Arbovirus and Viral Haemorrhagic Fever Unit, Institut Pasteur de Dakar, Dakar, Senegal
| | - Ousmane Faye
- Arbovirus and Viral Haemorrhagic Fever Unit, Institut Pasteur de Dakar, Dakar, Senegal
| | - Amadou Alpha Sall
- Arbovirus and Viral Haemorrhagic Fever Unit, Institut Pasteur de Dakar, Dakar, Senegal
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18
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A Population Dynamics Model of Mosquito-Borne Disease Transmission, Focusing on Mosquitoes' Biased Distribution and Mosquito Repellent Use. Bull Math Biol 2019; 81:4977-5008. [PMID: 31595380 DOI: 10.1007/s11538-019-00666-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 09/24/2019] [Indexed: 01/03/2023]
Abstract
We present an improved mathematical model of population dynamics of mosquito-borne disease transmission. Our model considers the effect of mosquito repellent use and the mosquito's behavior or attraction to the infected human, which cause mosquitoes' biased distribution around the human population. Our analysis of the model clearly shows the existence of thresholds for mosquito repellent efficacy and its utilization rate in the human population with respect to the elimination of mosquito-borne diseases. Further, the results imply that the suppression of mosquito-borne diseases becomes more difficult when the mosquitoes' distribution is biased to a greater extent around the human population.
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19
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Mishra N, Ng J, Rakeman JL, Perry MJ, Centurioni DA, Dean AB, Price A, Thakkar R, Angus AG, Williamson P, Delwart E, Carrington C, Sahadeo N, Che X, Briese T, Tokarz R, Lipkin WI. One-step pentaplex real-time polymerase chain reaction assay for detection of zika, dengue, chikungunya, West nile viruses and a human housekeeping gene. J Clin Virol 2019; 120:44-50. [PMID: 31557664 DOI: 10.1016/j.jcv.2019.08.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 08/19/2019] [Accepted: 08/23/2019] [Indexed: 12/27/2022]
Abstract
BACKGROUND Recent emergence of Zika virus (ZIKV), and the global spread of dengue (DENV), chikungunya (CHIKV) and West Nile viruses (WNV) raised urgent need of accurate and affordable molecular diagnosis of these clinically indistinguishable arboviral infections. OBJECTIVES We established a pentaplex real-time reverse transcription PCR (rRT-PCR) assay (CII-ArboViroPlex rRT-PCR) for specific and sensitive detection of the African and American genotypes of ZIKV, all four serotypes of DENV, CHIKV, WNV and a housekeeping gene as internal control in single reaction. STUDY DESIGN Specific primers and probe sets were designed for ZIKV, DENV, CHIKV, WNV and RNase P (housekeeping gene) and tested for in-vitro transcribed RNA standards, virus cultures, clinical samples positive for ZIKV, DENV, CHIKV and WNV and limit of detection (LOD) were determined for each. Results Using ten-fold serially diluted in-vitro transcribed RNA, CII- ArboViroPlex rRT-PCR assay has LOD of 100 RNA copies/reaction (Rn) for ZIKV in serum or urine, 100 RNA copies/Rn for DENV in serum, and 10 RNA copies/Rn for CHIKV and WNV in serum. LODs from sera spiked with quantitated viral stocks were 2.6 × 102 GEQ/Rn for ZIKV, 2.2 × 101 GEQ/Rn for DENV-1, 9.4 × 100 GEQ/Rn for DENV-2, 2.3 × 102 GEQ/Rn for DENV-3, 1.4 × 103 GEQ/Rn for DENV-4, 2.7 × 102 GEQ/Rn for CHIKV, and 1.05 × 101 GEQ/Rn for WNV. CONCLUSIONS The CII-ArboViroPlex rRT-PCR assay is a quantitative one-step pentaplex rRT-PCR assay for the molecular detection and differential diagnosis of ZIKV, DENV, CHIKV, WNV and a human housekeeping gene control in a single- PCR reaction.
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Affiliation(s)
- Nischay Mishra
- Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY, USA.
| | - James Ng
- Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Jennifer L Rakeman
- Public Health Laboratory, New York City Department of Health and Mental Hygiene, New York, NY, USA
| | - Michael J Perry
- Biodefense Laboratory, Wadsworth Center, New York State Department of Health, Albany, NY, USA
| | - Dominick A Centurioni
- Biodefense Laboratory, Wadsworth Center, New York State Department of Health, Albany, NY, USA
| | - Amy B Dean
- Virology Laboratory, Wadsworth Center, New York State Department of Health, Albany, NY, USA
| | - Adam Price
- Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Riddhi Thakkar
- Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Andreina Garcia Angus
- Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY, USA
| | | | - Eric Delwart
- Department of Laboratory Medicine, University of California at San Francisco, San Francisco, CA, USA
| | - Christine Carrington
- Department of Preclinical Sciences, Faculty of Medical Sciences, The University of the West Indies, St. Augustine, Trinidad and Tobago
| | - Nikita Sahadeo
- Department of Preclinical Sciences, Faculty of Medical Sciences, The University of the West Indies, St. Augustine, Trinidad and Tobago
| | - Xiaoyu Che
- Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Thomas Briese
- Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Rafal Tokarz
- Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - W Ian Lipkin
- Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY, USA
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20
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Boga JA, Alvarez-Arguelles ME, Rojo-Alba S, Rodríguez M, de Oña M, Melón S. Simultaneous detection of Dengue virus, Chikungunya virus, Zika virus, Yellow fever virus and West Nile virus. J Virol Methods 2019; 268:53-55. [DOI: 10.1016/j.jviromet.2019.03.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 03/11/2019] [Accepted: 03/27/2019] [Indexed: 11/28/2022]
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21
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Glushakova LG, Alto BW, Kim MS, Hutter D, Bradley A, Bradley KM, Burkett-Cadena ND, Benner SA. Multiplexed kit based on Luminex technology and achievements in synthetic biology discriminates Zika, chikungunya, and dengue viruses in mosquitoes. BMC Infect Dis 2019; 19:418. [PMID: 31088375 PMCID: PMC6518713 DOI: 10.1186/s12879-019-3998-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 04/16/2019] [Indexed: 12/22/2022] Open
Abstract
Background The global expansion of dengue (DENV), chikungunya (CHIKV), and Zika viruses (ZIKV) is having a serious impact on public health. Because these arboviruses are transmitted by the same mosquito species and co-circulate in the same area, a sensitive diagnostic assay that detects them together, with discrimination, is needed. Methods We present here a diagnostics panel based on reverse transcription-PCR amplification of viral RNA and an xMap Luminex architecture involving direct hybridization of PCRamplicons and virus-specific probes. Two DNA innovations (“artificially expanded genetic information systems”, AEGIS, and “self-avoiding molecular recognition systems”, SAMRS) increase the hybridization sensitivity on Luminex microspheres and PCR specificity of the multiplex assay compared to the standard approach (standard nucleotides). Results The diagnostics panel detects, if they are present, these viruses with a resolution of 20 genome equivalents (DENV1), or 10 (DENV3–4, CHIKV) and 80 (DENV2, ZIKV) genome equivalents per assay. It identifies ZIKV, CHIKV and DENV RNAs in a single infected mosquito, in mosquito pools comprised of 5 to 50 individuals, and mosquito saliva (ZIKV, CHIKV, and DENV2). Infected mosquitoes and saliva were also collected on a cationic surface (Q-paper), which binds mosquito and viral nucleic acids electrostatically. All samples from infected mosquitoes displayed only target-specific signals; signals from non-infected samples were at background levels. Conclusions Our results provide an efficient and multiplex tool that may be used for surveillance of emerging mosquito-borne pathogens which aids targeted mosquito control in areas at high risk for transmission. Electronic supplementary material The online version of this article (10.1186/s12879-019-3998-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Lyudmyla G Glushakova
- Firebird Biomolecular Sciences LLC, 13709 Progress Blvd, Box 17, Alachua, FL, 32615, USA
| | - Barry W Alto
- Florida Medical Entomology Laboratory, University of Florida, 200 9th Street SE, Vero Beach, FL, 32962, USA
| | - Myong-Sang Kim
- Firebird Biomolecular Sciences LLC, 13709 Progress Blvd, Box 17, Alachua, FL, 32615, USA
| | - Daniel Hutter
- Firebird Biomolecular Sciences LLC, 13709 Progress Blvd, Box 17, Alachua, FL, 32615, USA
| | - Andrea Bradley
- Firebird Biomolecular Sciences LLC, 13709 Progress Blvd, Box 17, Alachua, FL, 32615, USA
| | - Kevin M Bradley
- Firebird Biomolecular Sciences LLC, 13709 Progress Blvd, Box 17, Alachua, FL, 32615, USA
| | - Nathan D Burkett-Cadena
- Florida Medical Entomology Laboratory, University of Florida, 200 9th Street SE, Vero Beach, FL, 32962, USA
| | - Steven A Benner
- Firebird Biomolecular Sciences LLC, 13709 Progress Blvd, Box 17, Alachua, FL, 32615, USA.
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22
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Mascarenhas M, Garasia S, Berthiaume P, Corrin T, Greig J, Ng V, Young I, Waddell L. A scoping review of published literature on chikungunya virus. PLoS One 2018; 13:e0207554. [PMID: 30496207 PMCID: PMC6264817 DOI: 10.1371/journal.pone.0207554] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 11/01/2018] [Indexed: 12/13/2022] Open
Abstract
Chikungunya virus (CHIKV) has caused several major epidemics globally over the last two decades and is quickly expanding into new areas. Although this mosquito-borne disease is self-limiting and is not associated with high mortality, it can lead to severe, chronic and disabling arthritis, thereby posing a heavy burden to healthcare systems. The two main vectors for CHIKV are Aedes aegypti and Aedes albopictus (Asian tiger mosquito); however, many other mosquito species have been described as competent CHIKV vectors in scientific literature. With climate change, globalization and unfettered urban planning affecting many areas, CHIKV poses a significant public health risk to many countries. A scoping review was conducted to collate and categorize all pertinent information gleaned from published scientific literature on a priori defined aspects of CHIKV and its competent vectors. After developing a sensitive and specific search algorithm for the research question, seven databases were searched and data was extracted from 1920 relevant articles. Results show that CHIKV research is reported predominantly in areas after major epidemics have occurred. There has been an upsurge in CHIKV publications since 2011, especially after first reports of CHIKV emergence in the Americas. A list of hosts and vectors that could potentially be involved in the sylvatic and urban transmission cycles of CHIKV has been compiled in this scoping review. In addition, a repository of CHIKV mutations associated with evolutionary fitness and adaptation has been created by compiling and characterizing these genetic variants as reported in scientific literature.
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Affiliation(s)
- Mariola Mascarenhas
- National Microbiology Laboratory at Guelph, Public Health Agency of Canada, Guelph, Ontario, Canada
| | - Sophiya Garasia
- National Microbiology Laboratory at Guelph, Public Health Agency of Canada, Guelph, Ontario, Canada
| | - Philippe Berthiaume
- National Microbiology Laboratory at St. Hyacinthe, Public Health Agency of Canada, St. Hyacinthe, Quebec, Canada
| | - Tricia Corrin
- National Microbiology Laboratory at Guelph, Public Health Agency of Canada, Guelph, Ontario, Canada
| | - Judy Greig
- National Microbiology Laboratory at Guelph, Public Health Agency of Canada, Guelph, Ontario, Canada
| | - Victoria Ng
- National Microbiology Laboratory at Guelph, Public Health Agency of Canada, Guelph, Ontario, Canada
| | - Ian Young
- School of Occupational and Public Health, Ryerson University, Toronto, Ontario, Canada
| | - Lisa Waddell
- National Microbiology Laboratory at Guelph, Public Health Agency of Canada, Guelph, Ontario, Canada
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23
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Improved Immune Responses Against Zika Virus After Sequential Dengue and Zika Virus Infection in Humans. Viruses 2018; 10:v10090480. [PMID: 30205518 PMCID: PMC6164826 DOI: 10.3390/v10090480] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 09/04/2018] [Accepted: 09/04/2018] [Indexed: 02/02/2023] Open
Abstract
The high levels of dengue-virus (DENV) seroprevalence in areas where the Zika virus (ZIKV) is circulating and the cross-reactivity between these two viruses have raised concerns on the risk of increased ZIKV disease severity for patients with a history of previous DENV infections. To determine the role of DENV preimmunity in ZIKV infection, we analyzed the T- and B-cell responses against ZIKV in donors with or without previous DENV infection. Using peripheral blood mononuclear cells (PBMCs) from donors living in an endemic area in Colombia, we have identified, by interferon (IFN)-γ enzyme-linked immunospot (ELISPOT) assay, most of the immunodominant ZIKV T-cell epitopes in the nonstructural (NS) proteins NS1, NS3, and NS5. Analyses of the T- and B-cell responses in the same donors revealed a stronger T-cell response against peptides conserved between DENV and ZIKV, with a higher level of ZIKV-neutralizing antibodies in DENV-immune donors in comparison with DENV-naïve donors. Strikingly, the potential for antibody-mediated enhancement of ZIKV infection was reduced in donors with sequential DENV and ZIKV infection in comparison with donors with DENV infection only. Altogether, these data suggest that individuals with DENV immunity present improved immune responses against ZIKV.
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Wu W, Wang J, Yu N, Yan J, Zhuo Z, Chen M, Su X, Fang M, He S, Zhang S, Zhang Y, Ge S, Xia N. Development of multiplex real-time reverse-transcriptase polymerase chain reaction assay for simultaneous detection of Zika, dengue, yellow fever, and chikungunya viruses in a single tube. J Med Virol 2018; 90:1681-1686. [PMID: 29979812 DOI: 10.1002/jmv.25253] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 05/30/2018] [Indexed: 01/08/2023]
Abstract
Zika virus (ZIKV), dengue virus (DENV), chikungunya virus (CHIKV) and yellow fever virus (YFV) share the same mosquito vectors and have similar clinical manifestations early stage of infection. Therefore, simultaneously differentiating these viruses from each other is necessary. We developed a multiplex real-time reverse-transcriptase polymerase chain reaction (RT-PCR) assay for the differentiation of these four viruses in a single tube. The linear range was established by regression analysis, and the R2 value for each virus was ≥0.98, and the 95% lower limit of detection for each virus was as follows (copies/reaction): ZIKV-Asian, 9; ZIKV-Africa, 15; CHIKV, 11; DENV-1, 19; DENV-2, 13; DENV-3, 24; DENV-4, 36; and YFV, 17. Meanwhile, our multiplex real-time RT-PCR has a good consistency with the commercial singleplex assay. In summary, the developed assay can be effectively used for the diagnosis of ZIKV, DENV, CHIKV, and YFV infections.
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Affiliation(s)
- Wenhui Wu
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Life Sciences, Xiamen University, Xiamen, China.,State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - Jin Wang
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Life Sciences, Xiamen University, Xiamen, China.,State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - Nan Yu
- Center of Clinical Laboratory Diagonosis, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Juying Yan
- Zhejiang Center for Disease Control and Prevention, Hangzhou, China
| | - Zhihao Zhuo
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Life Sciences, Xiamen University, Xiamen, China.,State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - Mengyuan Chen
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Life Sciences, Xiamen University, Xiamen, China.,State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - Xiaosong Su
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Life Sciences, Xiamen University, Xiamen, China.,State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - Mujin Fang
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Life Sciences, Xiamen University, Xiamen, China.,State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - Shuizhen He
- Xiamen Center for Disease Control and Prevention, Xiamen, China
| | - Shiyin Zhang
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Life Sciences, Xiamen University, Xiamen, China.,State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - Yanjun Zhang
- Zhejiang Center for Disease Control and Prevention, Hangzhou, China
| | - Shengxiang Ge
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Life Sciences, Xiamen University, Xiamen, China.,State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - Ningshao Xia
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, School of Life Sciences, Xiamen University, Xiamen, China.,State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
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Rees EE, Petukhova T, Mascarenhas M, Pelcat Y, Ogden NH. Environmental and social determinants of population vulnerability to Zika virus emergence at the local scale. Parasit Vectors 2018; 11:290. [PMID: 29739467 PMCID: PMC5941591 DOI: 10.1186/s13071-018-2867-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Accepted: 04/23/2018] [Indexed: 01/05/2023] Open
Abstract
Background Zika virus (ZIKV) spread rapidly in the Americas in 2015. Targeting effective public health interventions for inhabitants of, and travellers to and from, affected countries depends on understanding the risk of ZIKV emergence (and re-emergence) at the local scale. We explore the extent to which environmental, social and neighbourhood disease intensity variables influenced emergence dynamics. Our objective was to characterise population vulnerability given the potential for sustained autochthonous ZIKV transmission and the timing of emergence. Logistic regression models estimated the probability of reporting at least one case of ZIKV in a given municipality over the course of the study period as an indicator for sustained transmission; while accelerated failure time (AFT) survival models estimated the time to a first reported case of ZIKV in week t for a given municipality as an indicator for timing of emergence. Results Sustained autochthonous ZIKV transmission was best described at the temporal scale of the study period (almost one year), such that high levels of study period precipitation and low mean study period temperature reduced the probability. Timing of ZIKV emergence was best described at the weekly scale for precipitation in that high precipitation in the current week delayed reporting. Both modelling approaches detected an effect of high poverty on reducing/slowing case detection, especially when inter-municipal road connectivity was low. We also found that proximity to municipalities reporting ZIKV had an effect to reduce timing of emergence when located, on average, less than 100 km away. Conclusions The different modelling approaches help distinguish between large temporal scale factors driving vector habitat suitability and short temporal scale factors affecting the speed of spread. We find evidence for inter-municipal movements of infected people as a local-scale driver of spatial spread. The negative association with poverty suggests reduced case reporting in poorer areas. Overall, relatively simplistic models may be able to predict the vulnerability of populations to autochthonous ZIKV transmission at the local scale. Electronic supplementary material The online version of this article (10.1186/s13071-018-2867-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Erin E Rees
- Public Health Risk Sciences Division, National Microbiology Laboratory, Public Health Agency of Canada, Saint-Hyacinthe, Québec, Canada.
| | - Tatiana Petukhova
- Public Health Risk Sciences Division, National Microbiology Laboratory, Public Health Agency of Canada, Guelph, Ontario, Canada
| | - Mariola Mascarenhas
- Public Health Risk Sciences Division, National Microbiology Laboratory, Public Health Agency of Canada, Guelph, Ontario, Canada
| | - Yann Pelcat
- Public Health Risk Sciences Division, National Microbiology Laboratory, Public Health Agency of Canada, Saint-Hyacinthe, Québec, Canada
| | - Nicholas H Ogden
- Public Health Risk Sciences Division, National Microbiology Laboratory, Public Health Agency of Canada, Saint-Hyacinthe, Québec, Canada
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Immune Responses to Dengue and Zika Viruses-Guidance for T Cell Vaccine Development. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15020385. [PMID: 29473899 PMCID: PMC5858454 DOI: 10.3390/ijerph15020385] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 02/19/2018] [Accepted: 02/19/2018] [Indexed: 02/01/2023]
Abstract
Despite numerous efforts to identify the molecular and cellular effectors of the adaptive immunity that induce a long-lasting immunity against dengue or Zika virus infection, the specific mechanisms underlying such protective immunity remain largely unknown. One of the major challenges lies in the high level of dengue virus (DENV) seroprevalence in areas where Zika virus (ZIKV) is circulating. In the context of such a pre-existing DENV immunity that can exacerbate ZIKV infection and disease, and given the lack of appropriate treatment for ZIKV infection, there is an urgent need to develop an efficient vaccine against DENV and ZIKV. Notably, whereas several ZIKV vaccine candidates are currently in clinical trials, all these vaccine candidates have been designed to induce neutralizing antibodies as the primary mechanism of immune protection. Given the difficulty to elicit simultaneously high levels of neutralizing antibodies against the different DENV serotypes, and the potential impact of pre-existing subneutralizing antibodies induced upon DENV infection or vaccination on ZIKV infection and disease, additional or alternative strategies to enhance vaccine efficacy, through T cell immunity, are now being considered. In this review, we summarize recent discoveries about cross-reactive B and T cell responses against DENV and ZIKV and propose guidelines for the development of safe and efficient T cell vaccines targeting both viruses.
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Boujnan M, Duits AJ, Koppelman MHGM. Zika virus RNA polymerase chain reaction on the utility channel of a commercial nucleic acid testing system. Transfusion 2018; 58:641-648. [PMID: 29322525 DOI: 10.1111/trf.14460] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 10/25/2017] [Accepted: 11/11/2017] [Indexed: 01/05/2023]
Abstract
BACKGROUND Several countries have implemented safety strategies to reduce the risk of Zika virus (ZIKV) transmission through blood transfusion. These strategies have included nucleic acid amplification testing (NAT) of blood donations. In this study, a new real-time polymerase chain reaction (PCR) assay including internal control for the detection of ZIKV on the cobas omni Utility Channel (UC) on the cobas 6800 system is presented. STUDY DESIGN AND METHODS PCR conditions and primer/probe concentrations were optimized on the LightCycler 480 instrument. Optimized conditions were transferred to the cobas omni UC on the cobas 6800 system. Subsequently, the limit of detection (LOD) in plasma and urine, genotype inclusivity, specificity, cross-reactivity, and clinical sensitivity were determined. RESULTS The 95% LOD of the ZIKV PCR assay on the cobas 6800 system was 23.0 IU/mL (95% confidence interval [CI], 16.5-37.5) in plasma and 24.5 IU/mL (95% CI, 13.4-92.9) in urine. The assay detected African and Asian lineages of ZIKV. The specificity was 100%. The clinical concordance between the newly developed ZIKV PCR assay and the investigational Roche cobas Zika NAT test was 83% (24/29). CONCLUSIONS We developed a sensitive ZIKV PCR assay on the cobas omni UC on the cobas 6800 system. The assay can be used for large-scale screening of blood donations for ZIKV or for testing of blood donors returning from areas with ZIKV to avoid temporal deferral. This study also demonstrates that the cobas omni UC on the cobas 6800 system can be used for in-house-developed PCR assays.
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Affiliation(s)
- Mohamed Boujnan
- Sanquin Blood Supply Foundation, National Screening Laboratory of Sanquin (NSS), Amsterdam, the Netherlands
| | - Ashley J Duits
- Biomedical & Health Research Institute, Willemstad, Curaçao.,Red Cross Blood Bank Foundation, Curaçao
| | - Marco H G M Koppelman
- Sanquin Blood Supply Foundation, National Screening Laboratory of Sanquin (NSS), Amsterdam, the Netherlands
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Reliable Serological Testing for the Diagnosis of Emerging Infectious Diseases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1062:19-43. [PMID: 29845523 DOI: 10.1007/978-981-10-8727-1_3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Climate change, increased urbanization and international travel have facilitated the spread of mosquito vectors and the viral species they carry. Zika virus (ZIKV) is currently spreading in the Americas, while dengue virus (DENV) and chikungunya virus (CHIKV) have already become firmly established in most tropical and also many non-tropical regions. ZIKV, DENV and CHIKV overlap in their endemic areas and cause similar clinical symptoms, especially in the initial stages of infection. Infections with each of these viruses can lead to severe complications, and co-infections have been reported. Therefore, laboratory analyses play an important role in differential diagnostics. A timely and accurate diagnosis is crucial for patient management, prevention of unnecessary therapies, rapid adoption of vector control measures, and collection of epidemiological data.There are two pillars to diagnosis: direct pathogen detection and the determination of specific antibodies. Serological tests provide a longer diagnostic window than direct methods, and are suitable for diagnosing acute and past infections, for disease surveillance and for vaccination monitoring. ELISA and indirect immunofluorescence test (IIFT) systems based on optimized antigens enable sensitive and specific detection of antibodies against ZIKV, DENV and CHIKV in patient serum or plasma. In recent years, Euroimmun (Lübeck, Germany) has developed numerous test systems for the serological diagnosis of (re-)emerging diseases, including a very sensitive and specific anti-ZIKV ELISA.
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Sood SK, Mahajan I. Wearable IoT sensor based healthcare system for identifying and controlling chikungunya virus. COMPUT IND 2017; 91:33-44. [PMID: 32287550 PMCID: PMC7114341 DOI: 10.1016/j.compind.2017.05.006] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 05/05/2017] [Accepted: 05/31/2017] [Indexed: 11/23/2022]
Abstract
Chikungunya is a vector borne disease that spreads quickly in geographically affected areas. Its outbreak results in acute illness that may lead to chronic phase. Chikungunya virus (CHV) diagnosis solutions are not easily accessible and affordable in developing countries. Also old approaches are very slow in identifying and controlling the spread of CHV outbreak. The sudden development and advancement of wearable internet of things (IoT) sensors, fog computing, mobile technology, cloud computing and better internet coverage have enhanced the quality of remote healthcare services. IoT assisted fog health monitoring system can be used to identify possibly infected users from CHV in an early phase of their illness so that the outbreak of CHV can be controlled. Fog computing provides many benefits such as low latency, minimum response time, high mobility, enhanced service quality, location awareness and notification service itself at the edge of the network. In this paper, IoT and fog based healthcare system is proposed to identify and control the outbreak of CHV. Fuzzy-C means (FCM) is used to diagnose the possibly infected users and immediately generate diagnostic and emergency alerts to users from fog layer. Furthermore on cloud server, social network analysis (SNA) is used to represent the state of CHV outbreak. Outbreak role index is calculated from SNA graph which represents the probability of any user to receive or spread the infection. It also generates warning alerts to government and healthcare agencies to control the outbreak of CHV in risk prone or infected regions. The experimental results highlight the advantages of using both fog computing and cloud computing services together for achieving network bandwidth efficiency, high quality of service and minimum response time in generation of real time notification as compared to a cloud only model.
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Affiliation(s)
| | - Isha Mahajan
- Department of Computer Science and Engineering, GNDU, Regional Campus, Gurdaspur, Punjab, India
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Cantillo JF, Puerta L, Puchalska P, Lafosse-Marin S, Subiza JL, Fernández-Caldas E. Allergenome characterization of the mosquito Aedes aegypti. Allergy 2017; 72:1499-1509. [PMID: 28235135 DOI: 10.1111/all.13150] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/21/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND Saliva and muscle-derived mosquito allergens have been purified and characterized. However, the complete set of allergens remains to be elucidated. In this study, we identified and characterized IgE-binding proteins from the mosquito species Aedes aegypti. METHODS Serum was obtained from 15 allergic individuals with asthma and/or rhinitis and sensitized to mosquito. IgE binding was determined by ELISA. Total proteins from freeze-dried bodies of A. aegypti were extracted and IgE-reactive proteins were identified by 2D gel electrophoresis, followed by Western blot with pooled or individual sera. IgE-reactive spots were further characterized by mass spectrometry. RESULTS Twenty-five IgE-reactive spots were identified, corresponding to 10 different proteins, some of which appeared as different variants or isoforms. Heat-shock cognate 70 (HSC-70) and tropomyosin showed IgE reactivity with 60% of the sera, lysosomal aspartic protease, and "AAEL006070-PA" (Uniprot: Q177P3) with 40% and the other proteins with <33.3% of the sera. Different variants or isoforms of tropomyosin, arginine or creatine kinase, glyceraldehyde-3-phosphate dehydrogenase (GPDH), calcium-binding protein, and phosphoglycerate mutase were also identified. The mixture of three allergens (Aed a 6, Aed a 8, and Aed a 10) seems to identify more than 80% of A. aegypti-sensitized individuals, indicating that these allergens should be considered when designing of improved mosquito allergy diagnostic tools. CONCLUSIONS The newly identified allergens may play a role in the pathophysiology of mosquito allergy in the tropics, and some of them might be important arthropod-related proteins involved in cross-reactivity between A. aegypti and other allergenic arthropods.
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Affiliation(s)
- J. F. Cantillo
- Institute for Immunological Research/University of Cartagena; Cartagena Colombia
| | - L. Puerta
- Institute for Immunological Research/University of Cartagena; Cartagena Colombia
| | - P. Puchalska
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering; Faculty of Biology, Environmental Sciences and Chemistry; University of Alcalá; Madrid Spain
| | | | | | - E. Fernández-Caldas
- Inmunotek S.L.; Alcalá de Henares Spain
- Division of Allergy and Immunology; University of South Florida; Tampa FL USA
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Chan JFW, Yip CCY, Tee KM, Zhu Z, Tsang JOL, Chik KKH, Tsang TGW, Chan CCS, Poon VKM, Sridhar S, Yin F, Hung IFN, Chau SKY, Zhang AJ, Chan KH, Yuen KY. Improved detection of Zika virus RNA in human and animal specimens by a novel, highly sensitive and specific real-time RT-PCR assay targeting the 5'-untranslated region of Zika virus. Trop Med Int Health 2017; 22:594-603. [PMID: 28214373 DOI: 10.1111/tmi.12857] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
OBJECTIVE AND METHOD We developed and evaluated five novel real-time RT-PCR assays targeting conserved regions in the 5'-untranslated region (5'-UTR), envelope (E'), non-structural protein 2A (NS2A), NS5 and 3'-UTR of the ZIKV genome. RESULTS The ZIKV-5'-UTR assay exhibited the lowest in vitro limit of detection (5-10 RNA copies/reaction and 3.0 × 10-1 plaque-forming units/ml). Compared to the modified version of a widely adopted RT-PCR assay targeting the ZIKV-E gene, the ZIKV-5'-UTR assay showed better sensitivity in human clinical specimens, and representative mouse specimens, including many organs which are known to be involved in human ZIKV infection but difficult to obtain in clinical settings. The ZIKV-5'-UTR assay detected ZIKV RNA in 84/84 (100.0%) ZIKV-E'-positive and an additional 30/296 (10.1%, P < 0.01) ZIKV-E'-negative mouse specimens. The higher sensitivity of the ZIKV-5'-UTR assay was most significant in kidney and testis/epididymis specimens (P < 0.01). No in vitro or in vivo cross-reactivity was found between the ZIKV-5'-UTR assay and dengue virus, yellow fever virus, Japanese encephalitis virus, West Nile virus, hepatitis C virus and Chikungunya virus. CONCLUSIONS The highly sensitive and specific ZIKV-5'-UTR assay may help to improve the laboratory diagnosis of ZIKV infection.
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Affiliation(s)
- Jasper Fuk-Woo Chan
- State Key Laboratory of Emerging Infectious Diseases, The University of Hong Kong, Hong Kong, China.,Department of Microbiology, The University of Hong Kong, Hong Kong, China.,Research Centre of Infection and Immunology, The University of Hong Kong, Hong Kong, China.,Carol Yu Centre for Infection, The University of Hong Kong, Hong Kong, China
| | - Cyril Chik-Yan Yip
- Department of Microbiology, The University of Hong Kong, Hong Kong, China
| | - Kah-Meng Tee
- Department of Microbiology, The University of Hong Kong, Hong Kong, China
| | - Zheng Zhu
- Department of Microbiology, The University of Hong Kong, Hong Kong, China
| | | | - Kenn Ka-Heng Chik
- Department of Microbiology, The University of Hong Kong, Hong Kong, China
| | | | | | | | - Siddharth Sridhar
- Department of Microbiology, The University of Hong Kong, Hong Kong, China
| | - Feifei Yin
- Key Laboratory of Tropical Diseases and Translational Medicine, Hainan Medical University, Haikou, China
| | - Ivan Fan-Ngai Hung
- Research Centre of Infection and Immunology, The University of Hong Kong, Hong Kong, China.,Department of Medicine, The University of Hong Kong, Hong Kong, China
| | - Sandy Ka-Yee Chau
- Department of Pathology, United Christian Hospital, Hong Kong, China
| | - Anna Jinxia Zhang
- Department of Microbiology, The University of Hong Kong, Hong Kong, China
| | - Kwok-Hung Chan
- Department of Microbiology, The University of Hong Kong, Hong Kong, China
| | - Kwok-Yung Yuen
- State Key Laboratory of Emerging Infectious Diseases, The University of Hong Kong, Hong Kong, China.,Department of Microbiology, The University of Hong Kong, Hong Kong, China.,Research Centre of Infection and Immunology, The University of Hong Kong, Hong Kong, China.,Carol Yu Centre for Infection, The University of Hong Kong, Hong Kong, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The University of Hong Kong, Hong Kong, China
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Islam J, Zaman K, Duarah S, Raju PS, Chattopadhyay P. Mosquito repellents: An insight into the chronological perspectives and novel discoveries. Acta Trop 2017; 167:216-230. [PMID: 28040483 DOI: 10.1016/j.actatropica.2016.12.031] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Revised: 12/20/2016] [Accepted: 12/24/2016] [Indexed: 01/04/2023]
Abstract
Mosquito being the major medically important arthropod vector; requires utmost attention to reduce the sufferings and economic consequences of those living in the endemic regions. This is only possible by minimising the human-mosquito contact by an absolute preventing measure. However, unfortunately, such absolute measures are yet to be developed despite enormous efforts and huge investments worldwide. In the absence of vaccines for number of mosquito-borne diseases, repellents could be an attractive option for both military personal and civilians to minimise the risk of contacting different mosquito-borne diseases. However, to achieve this golden goal, the detailed knowledge of a particular repellent is must, including its mode of repellency and other relevant informations. Here, in the present article, an effort has been made to convey the best and latest information on repellents in order to enhance the knowledge of scientific community. The review offers an overview on mosquito repellents, the novel discoveries, and areas in need of attention such as novel repellent formulations and their future prospective.
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Lee HJ, Kim YB, Shin Y. Advances in Epidemiology, Biology and Laboratory Diagnosis of Zika Virus. ACTA ACUST UNITED AC 2017. [DOI: 10.4167/jbv.2017.47.1.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Hee-Jung Lee
- Department of Bio-industrial Technologies, Konkuk University, Seoul, Korea
| | - Young Bong Kim
- Department of Bio-industrial Technologies, Konkuk University, Seoul, Korea
| | - Yungoh Shin
- Korean Institute of Science and Technology Information, Seoul, Korea
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34
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Torres JR, Murillo J, Bofill L. The ever changing landscape of Zika virus infection. Learning on the fly. Int J Infect Dis 2016; 51:123-126. [PMID: 27599795 DOI: 10.1016/j.ijid.2016.09.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Jaime R Torres
- Luis Razetti School of Medicine, Universidad Central de Venezuela; Tropical Medicine Institute, Caracas, Venezuela.
| | - Jorge Murillo
- Herbert Wertheim College of Medicine, Florida International University, Miami, Florida; Baptist Health System of South Florida
| | - Lina Bofill
- Global Health Consortium, Florida International University, Miami, Florida; Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Miami, Florida
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