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Jenks JD, Prattes J, Wurster S, Sprute R, Seidel D, Oliverio M, Egger M, Del Rio C, Sati H, Cornely OA, Thompson GR, Kontoyiannis DP, Hoenigl M. Social determinants of health as drivers of fungal disease. EClinicalMedicine 2023; 66:102325. [PMID: 38053535 PMCID: PMC10694587 DOI: 10.1016/j.eclinm.2023.102325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/27/2023] [Accepted: 11/02/2023] [Indexed: 12/07/2023] Open
Abstract
Disparities in social determinants of health (SDOH) play a significant role in causing health inequities globally. The physical environment, including housing and workplace environment, can increase the prevalence and spread of fungal infections. A number of professions are associated with increased fungal infection risk and are associated with low pay, which may be linked to crowded and sub-optimal living conditions, exposure to fungal organisms, lack of access to quality health care, and risk for fungal infection. Those involved and displaced from areas of armed conflict have an increased risk of invasive fungal infections. Lastly, a number of fungal plant pathogens already threaten food security, which will become more problematic with global climate change. Taken together, disparities in SDOH are associated with increased risk for contracting fungal infections. More emphasis needs to be placed on systematic approaches to better understand the impact and reducing the health inequities associated with these disparities.
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Affiliation(s)
- Jeffrey D. Jenks
- Durham County Department of Public Health, Durham, NC, United States of America
- Division of Infectious Diseases, Department of Medicine, Duke University, Durham, NC, United States of America
| | - Juergen Prattes
- Division of Infectious Diseases, ECMM Excellence Center for Medical Mycology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
- BioTechMed, Graz, Austria
| | - Sebastian Wurster
- Division of Internal Medicine, Department of Infectious Diseases, Infection Control and Employee Health, MD Anderson Cancer Center, University of Texas, Houston, TX, United States of America
| | - Rosanne Sprute
- Faculty of Medicine and University Hospital Cologne, University of Cologne, Institute of Translational Research, Cologne Excellence Cluster on Cellular Stress Responses in Aging – Associated Diseases (CECAD), Cologne, Germany
- Faculty of Medicine and University Hospital Cologne, Department I of Internal Medicine, University of Cologne, Center of Integrated Oncology Aachen Bonn Cologne Duesseldorf (CIO ABCD) and Excellence Center of Medical Mycology (ECMM), Cologne, Germany
- German Centre for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne, Germany
| | - Danila Seidel
- Faculty of Medicine and University Hospital Cologne, University of Cologne, Institute of Translational Research, Cologne Excellence Cluster on Cellular Stress Responses in Aging – Associated Diseases (CECAD), Cologne, Germany
- Faculty of Medicine and University Hospital Cologne, Department I of Internal Medicine, University of Cologne, Center of Integrated Oncology Aachen Bonn Cologne Duesseldorf (CIO ABCD) and Excellence Center of Medical Mycology (ECMM), Cologne, Germany
| | - Matteo Oliverio
- Faculty of Medicine and University Hospital Cologne, University of Cologne, Institute of Translational Research, Cologne Excellence Cluster on Cellular Stress Responses in Aging – Associated Diseases (CECAD), Cologne, Germany
- Department I of Internal Medicine, University of Cologne, Cologne, Germany
| | - Matthias Egger
- Division of Infectious Diseases, ECMM Excellence Center for Medical Mycology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
- BioTechMed, Graz, Austria
| | - Carlos Del Rio
- Emory Center for AIDS Research, Emory University School of Medicine, Atlanta, GA, United States of America
| | - Hatim Sati
- Department of Global Coordination and Partnership on Antimicrobial Resistance, World Health Organization, Geneva, Switzerland
| | - Oliver A. Cornely
- Faculty of Medicine and University Hospital Cologne, University of Cologne, Institute of Translational Research, Cologne Excellence Cluster on Cellular Stress Responses in Aging – Associated Diseases (CECAD), Cologne, Germany
- Faculty of Medicine and University Hospital Cologne, Department I of Internal Medicine, University of Cologne, Center of Integrated Oncology Aachen Bonn Cologne Duesseldorf (CIO ABCD) and Excellence Center of Medical Mycology (ECMM), Cologne, Germany
- German Centre for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne, Germany
- Faculty of Medicine and University Hospital Cologne, Clinical Trials Centre Cologne (ZKS Koln), University of Cologne, Cologne, Germany
| | - George R. Thompson
- University of California Davis Center for Valley Fever, Sacramento, CA, United States of America
- Division of Infectious Diseases, Department of Internal Medicine, University of California Davis Medical Center, Sacramento, CA, United States of America
- Department of Medical Microbiology and Immunology, University of California Davis, Davis, CA, United States of America
| | - Dimitrios P. Kontoyiannis
- Division of Internal Medicine, Department of Infectious Diseases, Infection Control and Employee Health, MD Anderson Cancer Center, University of Texas, Houston, TX, United States of America
| | - Martin Hoenigl
- Division of Infectious Diseases, ECMM Excellence Center for Medical Mycology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
- BioTechMed, Graz, Austria
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Henry MW, Miller AO. Management of Fungal Osteoarticular Infections. CURRENT FUNGAL INFECTION REPORTS 2023. [DOI: 10.1007/s12281-023-00453-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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3
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Teixeira MM, Almeida-Paes R, Bernardes-Engemann AR, Nicola AM, de Macedo PM, Valle ACF, Gutierrez-Galhardo MC, Freitas DFS, Barker BM, Matute DR, Stajich JE, Zancopé-Oliveira RM. Single nucleotide polymorphisms and chromosomal copy number variation may impact the Sporothrix brasiliensis antifungal susceptibility and sporotrichosis clinical outcomes. Fungal Genet Biol 2022; 163:103743. [PMID: 36152775 DOI: 10.1016/j.fgb.2022.103743] [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: 11/26/2021] [Revised: 09/16/2022] [Accepted: 09/16/2022] [Indexed: 02/05/2023]
Abstract
Feline-transmitted sporotrichosis has garnered attention due to the recent high incidence and the lack of efficient control in the epicenter of the epidemic, Rio de Janeiro, Brazil. Sporothrix brasiliensis is the major pathogen involved in feline-to-human sporotrichosis in Brazil and displays more virulent genotypes than the closely related species S. schenckii. Over the last two decades, several reports of antifungal-resistant strains have emerged. Sequencing and comparison analysis of the outbreak strains allowed us to observe that the azole non-wild-type S. brasiliensis strain CFP 1054 had significant chromosomal variations compared to wild-type strains. One of these variants includes a region of 231 Kb containing 75 duplicated genes, which were overrepresented for lipid and isoprenoid metabolism. We also identified an additional strain (CFP 1055) that was resistant to itraconazole and amphotericin B, which had a single nucleotide polymorphism in the tac1 gene. The patients infected with these two strains showed protracted clinical course and sequelae. Even though our sample size is modest, these results suggest the possibility of identifying specific point mutations and large chromosomal duplications potentially associated with antifungal resistance and clinical outcomes of sporotrichosis.
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Affiliation(s)
- Marcus M Teixeira
- Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, AZ, USA; Faculty of Medicine, University of Brasília-DF, Brazil
| | - Rodrigo Almeida-Paes
- Laboratório de Micologia, Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - Andréa R Bernardes-Engemann
- Laboratório de Micologia, Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | | | - Priscila M de Macedo
- Laboratório de Pesquisa Clínica em Dermatologia Infecciosa, Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - Antonio Carlos F Valle
- Laboratório de Pesquisa Clínica em Dermatologia Infecciosa, Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - Maria Clara Gutierrez-Galhardo
- Laboratório de Pesquisa Clínica em Dermatologia Infecciosa, Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - Dayvison F S Freitas
- Laboratório de Pesquisa Clínica em Dermatologia Infecciosa, Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - Bridget M Barker
- Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, AZ, USA
| | - Daniel R Matute
- Biology Department, University of North Carolina, Chapel Hill, NC, USA
| | - Jason E Stajich
- Department of Microbiology & Plant Pathology and Institute for Integrative Genome Biology, University of California, Riverside, Riverside, CA, USA
| | - Rosely M Zancopé-Oliveira
- Laboratório de Micologia, Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil.
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Bernardes-Engemann AR, Tomki GF, Rabello VBDS, Almeida-Silva F, Freitas DFS, Gutierrez-Galhardo MC, Almeida-Paes R, Zancopé-Oliveira RM. Sporotrichosis Caused by Non-Wild Type Sporothrix brasiliensis Strains. Front Cell Infect Microbiol 2022; 12:893501. [PMID: 35694546 PMCID: PMC9184675 DOI: 10.3389/fcimb.2022.893501] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 04/28/2022] [Indexed: 01/19/2023] Open
Abstract
The zoonotic transmission of sporotrichosis due to Sporothrix brasiliensis occurs largely in Rio de Janeiro state, Brazil since the 1990´s. Most patients infected with S. brasiliensis respond well to itraconazole or terbinafine. However, a few patients have a slow response or do not respond to the treatment and develop a chronic infection. The aim of this study was to analyze strains of S. brasiliensis against five different drugs to determine minimal inhibitory concentration distributions, to identify non-wild type strains to any drug evaluated and the clinical aspects of infections caused by them. This study evaluated 100 Sporothrix spp. strains obtained from 1999 to 2018 from the Evandro Chagas National Institute of Infectious Diseases, Fiocruz, which were identified through a polymerase chain reaction using specific primers for species identification. Two-fold serial dilutions of stock solutions of amphotericin B, itraconazole, posaconazole, ketoconazole and terbinafine prepared in dimethyl sulfoxide were performed to obtain working concentrations of antifungal drugs ranging from 0.015 to 8.0 mg/L. The broth microdilution reference method was performed according the M38-A2 CLSI guideline. All strains were identified as S. brasiliensis and thirteen were classified as non-wild type, two of them against different drugs. Non-wild type strains were identified throughout the entire study period. Patients infected by non-wild type strains presented prolonged treatment times, needed increased antifungal doses than those described in the literature and one of them presented a permanent sequel. In addition, three of them, with immunosuppression, died from sporotrichosis. Despite the broad use of antifungal drugs in hyperendemic areas of sporotrichosis, an emergence of non-wild type strains did not occur. The results of in vitro antifungal susceptibility tests should guide sporotrichosis therapy, especially in immunosuppressed patients.
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Affiliation(s)
- Andréa Reis Bernardes-Engemann
- Laboratório de Micologia, Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Gabriela Ferreira Tomki
- Laboratório de Micologia, Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Vanessa Brito de Souza Rabello
- Laboratório de Micologia, Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Fernando Almeida-Silva
- Laboratório de Micologia, Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Dayvison Francis Saraiva Freitas
- Laboratório de Pesquisa Clínica em Dermatologia Infecciosa - Instituto Nacional de Infectologia Evandro Chagas – Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Maria Clara Gutierrez-Galhardo
- Laboratório de Pesquisa Clínica em Dermatologia Infecciosa - Instituto Nacional de Infectologia Evandro Chagas – Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Rodrigo Almeida-Paes
- Laboratório de Micologia, Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Rosely Maria Zancopé-Oliveira
- Laboratório de Micologia, Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
- *Correspondence: Rosely Maria Zancopé-Oliveira,
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Madsen AM, Crook B. Occupational exposure to fungi on recyclable paper pots and growing media and associated health effects - A review of the literature. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 788:147832. [PMID: 34034170 DOI: 10.1016/j.scitotenv.2021.147832] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 05/11/2021] [Accepted: 05/12/2021] [Indexed: 06/12/2023]
Abstract
Different types of pots and growing and casing media, including biodegradable materials, are used for plant and mushroom production. The fungus Peziza ostracoderma has gained attention for its visible growth on growing media for plants and casing media for mushrooms. Through a review of the literature we aim to evaluate whether exposure to fungi from recyclable pots and different growing and casing media occurs and causes occupational health effects. Based on the published papers, specific fungal species were not related to a specific medium. Thus P. ostracoderma has been found on paper pots, peat, sterilized soil, vermiculite, and rockwool with plants, and on peat, pumice, and paper casing for mushrooms. It has been found in high concentrations in the air in mushroom farms. Also Acremonium spp., Aspergillus niger, A. fumigatus, Athelia turficola, Aureobasidium pullulans, Chaetomium globosum, Chrysonilia sitophila, Cladosporium spp., Cryptostroma corticale, Lecanicillium aphanocladii, Sporothrix schenckii, Stachybotrys chartarum, and Trichoderma spp. have been found on different types of growing or casing media. Most of the fungi have also been found in the air in greenhouses, but the knowledge about airborne fungal species in mushroom farms is very limited. Eight publications describe cases of health effects associated directly with exposure to fungi from pots or growing or casing media. These include cases of hypersensitivity pneumonitis caused by exposure to: A. fumigatus, A. niger, Au. pullulans, Cr. corticale, P. ostracoderma, and a mixture of fungi growing on different media. Different approaches have been used to avoid growth of saprophytes including: chemical fungicides, the formulation of biodegradable pots and growing media and types of peat. To increase the sustainability of growing media different types of media are tested for their use and with the present study we highlight the importance of also considering the occupational health of the growers who may be exposed to fungi from the media and pots.
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Affiliation(s)
- Anne Mette Madsen
- The National Research Centre for the Working Environment, Lersø Parkallé 105, DK-2100 Copenhagen, Denmark.
| | - Brian Crook
- Health and Safety Executive, Science and Research Centre, Buxton SK17 9JN, UK
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Abstract
The geographic distribution of sporotrichosis in the United States is largely unknown. In a large commercial health insurance database, sporotrichosis was rare but most frequently occurred in southern and south-central states. Knowledge about where sporotrichosis is most likely to occur is essential for increasing clinician awareness of this rare fungal disease.
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Endemic and Other Dimorphic Mycoses in The Americas. J Fungi (Basel) 2021; 7:jof7020151. [PMID: 33672469 PMCID: PMC7923431 DOI: 10.3390/jof7020151] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/17/2021] [Accepted: 02/17/2021] [Indexed: 12/14/2022] Open
Abstract
Endemic fungi are thermally dimorphic fungi that have a limited geographic range and can cause both primary disease and opportunistic infections. The Americas are home to more genera of endemic fungi than anywhere else on earth. These include Coccidioides, Histoplasma, Blastomyces, Paracoccidioides, and Sporothrix. Endemic fungi are found across the Americas and the Caribbean, from Blastomyces gilchristi, which extends into the northeast corners of North America, to Histoplasma capsulatum, which occurs all the way down in the southern regions of South America and into the Caribbean Islands. Symptoms of endemic fungal infection, when present, mimic those of many other diseases and are often diagnosed only after initial treatment for a bacterial or viral disease has failed. Endemic fungi place a significant medical burden on the populations they affect, especially in immunocompromised individuals and in resource-limited settings. This review summarizes the ecology, geographical range, epidemiology, and disease forms of the endemic fungi found in the Americas. An emphasis is placed on new and proposed taxonomic changes, including the assignment of new species names in Histoplasma, Blastomyces, and Paracoccidioides.
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Green BJ, Levetin E, Horner WE, Codina R, Barnes CS, Filley WV. Landscape Plant Selection Criteria for the Allergic Patient. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2018; 6:1869-1876. [PMID: 30097356 DOI: 10.1016/j.jaip.2018.05.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 05/15/2018] [Indexed: 11/27/2022]
Abstract
Patients with pollen-related allergies are concerned about the species within their landscape that provoke their symptoms. Allergists are often asked for guidance but few information sources are available to aid patients in the recognition of allergenic plants and strategies to avoid personal exposure to them. Landscaping and horticultural workers also have few reliable guidance references, and what is available usually extols the virtues of the plants rather than their negative features. The aim of this article was to provide the results of the Landscape Allergen Working Group that was formed by the AAAAI Aerobiology Committee, which aimed to fill these existing knowledge gaps and develop guidance on producing a low-allergenic landscape. Within the context that complete pollen avoidance is unrealistic, the workgroup introduces selection criteria, avoidance strategies, and guidance on low-allergenic plants that could be selected by patients to reduce the overall pollen burden in their landscape environment. Specific focus is placed on entomophilous plants, which require insects as dispersal vectors and generally produce lower quantities of pollen, compared with anemophilous (wind-pollinated) species. Other biological hazards that can be encountered while performing landscaping activities are additionally reviewed and avoidance methods presented with the aim of protecting gardeners, and workers in the landscape and horticulture industries. The guidance presented in this article will ultimately be a helpful resource for the allergist and assist in engaging patients who are seeking to reduce the burden of allergen in their landscape environment.
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Affiliation(s)
- Brett J Green
- Allergy and Clinical Immunology Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, Morgantown, WVa.
| | - Estelle Levetin
- Department of Biological Science, University of Tulsa, Tulsa, Okla
| | | | | | - Charles S Barnes
- Division of Allergy/Immunology, Children's Mercy Hospital, Kansas City, Mo
| | - Warren V Filley
- Oklahoma Allergy & Asthma Clinic, University of Oklahoma Health Science Center, Oklahoma City, Okla
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9
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Abstract
Fungi are rare but important causes of osteoarticular infections, and can be caused by a wide array of yeasts and molds. Symptoms are often subacute and mimic those of other more common causes of osteoarticular infection, which can lead to substantial delays in treatment. A high index of suspicion is required to establish the diagnosis. The severity of infection depends on the inherent pathogenicity of the fungi, the immune status of the host, the anatomic location of the infection, and whether the infection involves a foreign body. Treatment often involves a combination of surgical debridement and prolonged antifungal therapy.
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Affiliation(s)
- Michael W Henry
- Division of Infectious Diseases, Department of Medicine, Hospital for Special Surgery, Weill Cornell Medicine, 535 East 70th Street, New York, NY 10021, USA
| | - Andy O Miller
- Division of Infectious Diseases, Department of Medicine, Hospital for Special Surgery, Weill Cornell Medicine, 535 East 70th Street, New York, NY 10021, USA
| | - Thomas J Walsh
- Division of Infectious Diseases, Department of Medicine, Hospital for Special Surgery, Weill Cornell Medicine, 535 East 70th Street, New York, NY 10021, USA; Department of Pediatrics, Weill Cornell Medicine, 1300 York Avenue, New York, NY 10065, USA; Department of Microbiology & Immunology, Weill Cornell Medicine, 1300 York Avenue, New York, NY 10065, USA
| | - Barry D Brause
- Division of Infectious Diseases, Department of Medicine, Hospital for Special Surgery, Weill Cornell Medicine, 535 East 70th Street, New York, NY 10021, USA.
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Moussa TAA, Kadasa NMS, Al Zahrani HS, Ahmed SA, Feng P, Gerrits van den Ende AHG, Zhang Y, Kano R, Li F, Li S, Song Y, Dong B, Rossato L, Dolatabadi S, Hoog SD. Origin and distribution of Sporothrix globosa causing sapronoses in Asia. J Med Microbiol 2017; 66:560-569. [PMID: 28327256 DOI: 10.1099/jmm.0.000451] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
PURPOSE The aim of the study was to evaluate the main sources and epidemiological patterns and speculate on the evolutionary origin of Sporothrix globosa in Asia. METHODOLOGY Case and case series literature on sporotrichosis in Asia from January 2007 onwards were reviewed using meta-analysis. Phylogenetic analysis of relevant S. globosa was carried out on the basis of concatenated sequences of ITS, TEF3 and CAL. A haplotype network of CAL sequences of 281 Sporothrix isolates was analysed to determine the population structure of S. globosa. RESULTS Nearly all cases of sporotrichosis caused by S. globosa in Asia were human. In contrast to the remaining pathogenic Sporothrix species, feline transmission was exceptional; nearly all regional cat-associated cases were caused by Sporothrix schenckii. While the latter species was highly variable and showed recombination, S. globosa seemed to be a clonal offshoot, as was Sporothrix brasiliensis. The origin of the segregants was located in an area of high variability in S. schenckii with a relatively high frequency of Asian strains. CONCLUSION In Asia, S. globosa was the prevalent species. The low diversity of S. globosa suggested a recent divergence with a founder effect of low variability from the variable ancestral species, S. schenckii.
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Affiliation(s)
- Tarek A A Moussa
- Botany and Microbiology Department, Faculty of Science, Cairo University, Giza, Egypt.,Biological Sciences Department, Faculty of Science, University of Jeddah, Jeddah, Saudi Arabia.,Biological Sciences Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Naif M S Kadasa
- Biological Sciences Department, Faculty of Science, University of Jeddah, Jeddah, Saudi Arabia.,Biological Sciences Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hassan S Al Zahrani
- Biological Sciences Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | | | - Peiying Feng
- Department of Dermatology, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, PR China.,Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands
| | | | - Yu Zhang
- Department of Dermatology, Tianjin Academy of Traditional Chinese Medicine Affiliated Hospital, Tianjin, PR China
| | - Rui Kano
- Department of Pathobiology, Nihon University School of Veterinary Medicine, Fujisawa, Japan
| | - Fuqiu Li
- Department of Dermatology, Second Hospital of Jilin University, Jilin, PR China
| | - Shanshan Li
- Department of Dermatology and Venereology, First Hospital of Jilin University, Jilin, PR China
| | - Yang Song
- Department of Dermatology and Venereology, First Hospital of Jilin University, Jilin, PR China
| | - Bilin Dong
- Center for Infectious Skin Diseases, Department of Dermatology, No. 1 Hospital of Wuhan, Wuhan, PR China
| | - Luana Rossato
- Laboratório de Micologia, Departamento de Análises Clínicas e Toxicológicas, São Paulo, Brazil
| | - Somayeh Dolatabadi
- Faculty of Engineering, Sabzevar University of New Technologies, Sabzevar, Iran.,Cellular and Molecular Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran.,Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands
| | - Sybren de Hoog
- Westerdijk Fungal Biodiversity Institute, Utrecht, The Netherlands.,Biological Sciences Department, Faculty of Science, University of Jeddah, Jeddah, Saudi Arabia
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Oliveira MME, Franco-Duarte R, Romeo O, Pais C, Criseo G, Sampaio P, Zancope-Oliveira RM. Evaluation of T3B fingerprinting for identification of clinical and environmental Sporothrix species. FEMS Microbiol Lett 2015; 362:fnv027. [PMID: 25714550 DOI: 10.1093/femsle/fnv027] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
In this study, PCR fingerprinting using the universal primer T3B was applied to distinguish among clinical and environmental species of the Sporothrix complex, Sporothrix brasiliensis, S. globosa, S. mexicana, S. pallida, S. luriei and S. schenckii sensu stricto. The T3B fingerprinting generated clearly distinct banding patterns, allowing the correct identification of all 43 clinical and environmental isolates at the species level, what was confirmed by partial calmodulin gene sequence analyses. This technique is reproducible and provides the identification of all species of the Sporothrix complex with sufficient accuracy to be applied in clinical mycology laboratories as well as in epidemiological studies in order to obtain a better understanding of the epidemiology of sporotrichosis.
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Affiliation(s)
| | - Ricardo Franco-Duarte
- Molecular and Environmental Biology Centre (CBMA), Universidade do Minho, 4710-057, Braga, Portugal
| | - Orazio Romeo
- Department of Environmental and Biological Sciences - University of Messina, 98166, Italy
| | - Célia Pais
- Molecular and Environmental Biology Centre (CBMA), Universidade do Minho, 4710-057, Braga, Portugal
| | - Giuseppe Criseo
- Department of Environmental and Biological Sciences - University of Messina, 98166, Italy
| | - Paula Sampaio
- Molecular and Environmental Biology Centre (CBMA), Universidade do Minho, 4710-057, Braga, Portugal
| | - Rosely Maria Zancope-Oliveira
- Laboratório de Micologia, Instituto de Pesquisa Clínica Evandro Chagas, Fundação Oswaldo Cruz, Rio de Janeiro, RJ 21045-900, Brazil
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12
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Phylogeography and evolutionary patterns in Sporothrix spanning more than 14 000 human and animal case reports. Persoonia - Molecular Phylogeny and Evolution of Fungi 2015; 35:1-20. [PMID: 26823625 PMCID: PMC4713101 DOI: 10.3767/003158515x687416] [Citation(s) in RCA: 136] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Accepted: 10/21/2014] [Indexed: 01/19/2023]
Abstract
Pathology to vertebrate hosts has emerged repeatedly in the order Ophiostomatales. Occasional infections have been observed in Sporothrix mexicana at a low level of virulence, while the main pathogenic species cluster in a derived clade around S. schenckii s.str. In this paper, phylogeny and epidemiology of the members of this clade were investigated for 99 clinical and 36 environmental strains using four genetic loci, viz. rDNA ITS and partial CAL, TEF1, and TEF3; data are compared with amplified fragment length polymorphism (AFLP) genotyping. The four main species of the pathogenic clade were recognised. The species proved to show high degrees of endemicity, which enabled interpretation of literature data where live material or genetic information is lacking. The clade of four species comprised nine subclusters, which often had limited geographic distribution and were separate from each other in all partitions, suggesting low degrees of interbreeding between populations. In contrast, S. globosa exhibited consistent global distribution of identical AFLP types, suggesting another type of dispersal. Sporothrix brasiliensis is known to be involved in an expanding zoonosis and transmitted by cats, whereas S. globosa infections originated from putrid plant material, causing a sapronosis. Sporothrix schenckii s.str., the most variable species within the clade, also had a plant origin, with ecological similarities to that of S. globosa. A hypothesis was put forward that highly specific conditions in the plant material are required to promote the growth of Sporothrix. Fermented, self-heated plant debris may stimulate the thermodependent yeast-like invasive form of the fungus, which facilitates repeated infection of mammals.
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Chakrabarti A, Bonifaz A, Gutierrez-Galhardo MC, Mochizuki T, Li S. Global epidemiology of sporotrichosis. Med Mycol 2014; 53:3-14. [PMID: 25526781 DOI: 10.1093/mmy/myu062] [Citation(s) in RCA: 295] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Sporotrichosis is an endemic mycosis caused by the dimorphic fungus Sporothrix schenckii sensu lato. It has gained importance in recent years due to its worldwide prevalence, recognition of multiple cryptic species within the originally described species, and its distinctive ecology, distribution, and epidemiology across the globe. In this review, we describe the current knowledge of the taxonomy, ecology, prevalence, molecular epidemiology, and outbreaks due to S. schenckii sensu lato. Despite its omnipresence in the environment, this fungus has remarkably diverse modes of infection and distribution patterns across the world. We have delved into the nuances of how sporotrichosis is intimately linked to different forms of human activities, habitats, lifestyles, and environmental and zoonotic interactions. The purpose of this review is to stimulate discussion about the peculiarities of this unique fungal pathogen and increase the awareness of clinicians and microbiologists, especially in regions of high endemicity, to its emergence and evolving presentations and to kindle further research into understanding the unorthodox mechanisms by which this fungus afflicts different human populations.
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Affiliation(s)
- Arunaloke Chakrabarti
- Department of Medical Microbiology, Postgraduate Institute of Medical Education & Research, Chandigarh, India
| | - Alexandro Bonifaz
- Department of Mycology & Service of Dermatology, General Hospital of Mexico, México city, Mexico
| | - Maria Clara Gutierrez-Galhardo
- Laboratório de Dermatologia Infecciosa, Instituto de Pesquisa Clínica Evandro Chagas, Fundaçã Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Takashi Mochizuki
- Department of Dermatology, Kanazawa Medical University, Uchinada, Kahoku, Ishikawa, Japan
| | - Shanshan Li
- Department of Dermatology and Venereology, First Hospital of Jilin University, Changchun, Jilin, China
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Diagnosis and Treatment of Lymphocutaneous Sporotrichosis: What Are the Options? CURRENT FUNGAL INFECTION REPORTS 2013. [DOI: 10.1007/s12281-013-0140-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Pérez-Fernández N, Jaka-Moreno A, de la Caba I, Goenaga-Sánchez MÁ. Nódulos subcutáneos en un paciente natural de Nicaragua. Enferm Infecc Microbiol Clin 2013. [DOI: 10.1016/j.eimc.2012.07.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
Subcutaneous mycoses are common in tropical and subtropical regions of the world. These infections have multiple features in common, including similar epidemiology, mode of transmission, indolent chronic presentation with low potential for dissemination in immunocompetent hosts, and pyogranulomatous lesions on histopathology. Herein, we provide up-to-date epidemiologic, clinical, diagnostic, and therapeutic data for three important subcutaneous mycoses: chromoblastomycosis, mycetoma, and sporotrichosis.
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Affiliation(s)
- Ricardo M La Hoz
- Department of Medicine, Division of Infectious Diseases, University of Alabama at Birmingham, 1900 University Boulevard, Tinsley Harrison Tower 229, Birmingham, AL, 35294-0006, USA
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Abstract
This article describes PCR fingerprinting using the universal primer T3B to distinguish among species of the Sporothrix complex, S. brasiliensis, S. globosa, S. mexicana, and S. schenckii. This methodology generated distinct banding patterns, allowing the correct identification of all 35 clinical isolates at the species level, confirmed by partial calmodulin (CAL) gene sequence analyses. This methodology is simple, reliable, rapid, and cheap, making it an ideal routine identification system for clinical mycology laboratories.
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Almeida-Paes R, Bailão AM, Pizzini CV, Reis RS, de Almeida Soares CM, Peralta JM, Gutierrez-Galhardo MC, Zancopé-Oliveira RM. Cell-free antigens ofSporothrix brasiliensis: antigenic diversity and application in an immunoblot assay. Mycoses 2012; 55:467-75. [DOI: 10.1111/j.1439-0507.2012.02175.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
Sporotrichosis, which is caused by the dimorphic fungus Sporothrix schenckii, is currently distributed throughout the world, especially in tropical and subtropical zones. Infection generally occurs by traumatic inoculation of soil, plants, and organic matter contaminated with the fungus. Certain leisure and occupational activities, such as floriculture, agriculture, mining, and wood exploitation, are traditionally associated with the mycosis. Zoonotic transmission has been described in isolated cases or in small outbreaks. Since the end of the 1990s there has been an epidemic of sporotrichosis associated with transmission by cats in Rio de Janeiro, Brazil. More than 2,000 human cases and 3,000 animal cases have been reported. In humans, the lesions are usually restricted to the skin, subcutaneous cellular tissue, and adjacent lymphatic vessels. In cats, the disease can evolve with severe clinical manifestations and frequent systemic involvement. The gold standard for sporotrichosis diagnosis is culture. However, serological, histopathological, and molecular approaches have been recently adopted as auxiliary tools for the diagnosis of this mycotic infection. The first-choice treatment for both humans and cats is itraconazole.
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Variation in Genotype and Higher Virulence of a Strain of Sporothrix schenckii Causing Disseminated Cutaneous Sporotrichosis. Mycopathologia 2011; 172:439-46. [DOI: 10.1007/s11046-011-9441-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2010] [Accepted: 06/21/2011] [Indexed: 10/18/2022]
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Phenotypic and Molecular Identification of Sporothrix Isolates from an Epidemic Area of Sporotrichosis in Brazil. Mycopathologia 2011; 172:257-67. [DOI: 10.1007/s11046-011-9437-3] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2011] [Accepted: 05/30/2011] [Indexed: 11/30/2022]
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Reis RS, Almeida-Paes R, Muniz MDM, Tavares PMES, Monteiro PCF, Schubach TMP, Gutierrez-Galhardo MC, Zancopé-Oliveira RM. Molecular characterisation of Sporothrix schenckii isolates from humans and cats involved in the sporotrichosis epidemic in Rio de Janeiro, Brazil. Mem Inst Oswaldo Cruz 2010; 104:769-74. [PMID: 19820840 DOI: 10.1590/s0074-02762009000500018] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2009] [Accepted: 06/30/2009] [Indexed: 11/22/2022] Open
Abstract
An epidemic of sporotrichosis, a subcutaneous mycosis caused by the fungus Sporothrix schenckii, is ongoing in Rio de Janeiro, Brazil, in which cases of human infection are related to exposure to cats. In an attempt to demonstrate the zoonotic character of this epidemic using molecular methodology, we characterised by DNA-based typing methods 19 human and 25 animal S. schenckii isolates from the epidemic, as well as two control strains. To analyse the isolates, the random amplified polymorphic DNA (RAPD) technique was performed using three different primers, together with DNA fingerprinting using the minisatellite derived from the wild-type phage M13 core-sequence. The analyses generated amplicons with considerable polymorphism. Although isolates exhibited high levels of genetic relatedness, they could be clustered into 5-10 genotypes. The RAPD profiles of epidemic S. schenckii isolates could be distinguished from that of the United States isolate, displaying 20% similarity to each primer and 60% when amplified with the M13 primer. DNA fingerprinting of S. schenckii isolated from the nails (42.8%) and the oral cavities (66%) of cats were identical to related human samples, suggesting that there is a common infection source for animals and humans in this epidemic. It is clear that cats act as a vehicle for dissemination of S. schenckii.
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Affiliation(s)
- Rosani Santos Reis
- Laboratório de Micologia, Instituto de Pesquisa Clínica Evandro Chagas-Fiocruz, Rio de Janeiro, RJ, Brazil.
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Criseo G, Romeo O. Ribosomal DNA Sequencing and Phylogenetic Analysis of Environmental Sporothrix schenckii Strains: Comparison with Clinical Isolates. Mycopathologia 2010; 169:351-8. [DOI: 10.1007/s11046-010-9274-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2009] [Accepted: 01/13/2010] [Indexed: 01/19/2023]
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Crothers SL, White SD, Ihrke PJ, Affolter VK. Sporotrichosis: a retrospective evaluation of 23 cases seen in northern California (1987-2007). Vet Dermatol 2009; 20:249-59. [PMID: 19659536 DOI: 10.1111/j.1365-3164.2009.00763.x] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Sporotrichosis is an uncommon to rare cutaneous and subcutaneous mycosis of animals and humans caused by the dimorphic fungus Sporothrix schenckii. Twenty-three mammalian cases of sporotrichosis examined between 1987 and 2007 at the University of California, Davis - Veterinary Medical Teaching Hospital, were retrospectively evaluated with regard to the historical, clinical, diagnostic and treatment findings. Cats were the most common species affected (n = 14). In addition, sporotrichosis was diagnosed in four dogs, four horses and a donkey. Six of 23 cases were diagnosed with the localized cutaneous form of sporotrichosis (four cats, one dog, one horse), 10 with the cutaneous-lymphatic form (four cats, two dogs, three horses and a donkey), and seven with the disseminated form (six cats, one dog). Two of 23 cases did not have skin lesions at the time of diagnosis (one cat, one dog). The most common mode of diagnosis was demonstration of S. schenckii on histopathological evaluation of tissue. In contrast with most previously described sporotrichosis infections in cats, few to no fungal organisms were seen in histopathological samples (haematoxylin and eosin and special stains) in five of the 14 cats. Treatments received included itraconazole (12 cats, one dog), ketoconazole (three dogs), fluconazole (one cat, one donkey), sodium iodide (four horses, one cat) and potassium iodide (one cat, one horse, one donkey). The prognosis for successful treatment was good in all species. Fluconazole was successful in inducing resolution of the cutaneous lesions and controlling the infection in one cat with disseminated sporotrichosis.
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Affiliation(s)
- Samantha L Crothers
- Department of Medicine and Epidemiology, Veterinary Medical Teaching Hospital, University of California, Davis, California 95616, USA.
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Kovarik CL, Neyra E, Bustamante B. Evaluation of cats as the source of endemic sporotrichosis in Peru. Med Mycol 2008; 46:53-6. [PMID: 17885948 DOI: 10.1080/13693780701567481] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
Although contact with domestic cats has been shown to be a risk factor for sporotrichosis in endemic areas, systematic evaluation of apparently unaffected cats as possible reservoirs for infection has not been explored. The goals of this study were to identify the following aspects of sporotrichosis in the endemic area of Abancay, Peru: (i) the overall prevalence of sporotrichosis in the cat population, (ii) the most common site where the fungus can be isolated from these cats, and (iii) whether cats without identifiable skin lesions may be carriers of the fungus in the oral mucosa, nasal mucosa, or nails. One household cat in each of 85 neighborhoods within the endemic area of Abancay, Peru was randomly selected. Oral and nasal swabs, as well as nail clippings were taken from 84 of the cats. In addition, samples from skin lesions that were suspected to be due to sporotrichosis were collected from cats or members of families that owned the pets. Cultures inoculated with two nasal swabs and one set of nail clippings from two different cats yielded Sporothrix schenckii, the identity of which were confirmed by rDNA sequencing. The overall prevalence of Sporothrix schenckii colonization was 2.38% (95% CI 0.41-9.14) in this cat population. None of the skin lesion samples from the cats and only one such sample from a family member were positive for Sporothrix schenckii in culture. These results suggest a role for domestic cats as a possible reservoir for sporotrichosis infection in Abancay.
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Affiliation(s)
- Carrie L Kovarik
- Department of Dermatology, University of Pennsylvania School of Medicine, 2 Maloney Building, 3600 Spruce Street, Philadelphia, PA 19104, USA.
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Kauffman CA, Bustamante B, Chapman SW, Pappas PG. Clinical practice guidelines for the management of sporotrichosis: 2007 update by the Infectious Diseases Society of America. Clin Infect Dis 2007; 45:1255-65. [PMID: 17968818 DOI: 10.1086/522765] [Citation(s) in RCA: 269] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2007] [Accepted: 08/21/2007] [Indexed: 10/17/2023] Open
Abstract
Guidelines for the management of patients with sporotrichosis were prepared by an Expert Panel of the Infectious Diseases Society of America and replace the guidelines published in 2000. The guidelines are intended for use by internists, pediatricians, family practitioners, and dermatologists. They include evidence-based recommendations for the management of patients with lymphocutaneous, cutaneous, pulmonary, osteoarticular, meningeal, and disseminated sporotrichosis. Recommendations are also provided for the treatment of sporotrichosis in pregnant women and in children.
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Affiliation(s)
- Carol A Kauffman
- Infectious Diseases Section, Veterans Affairs Medical Center, University of Michigan Medical School, Ann Arbor, MI 48105, USA.
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van Baarlen P, van Belkum A, Summerbell RC, Crous PW, Thomma BPHJ. Molecular mechanisms of pathogenicity: how do pathogenic microorganisms develop cross-kingdom host jumps? FEMS Microbiol Rev 2007; 31:239-77. [PMID: 17326816 DOI: 10.1111/j.1574-6976.2007.00065.x] [Citation(s) in RCA: 122] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
It is common knowledge that pathogenic viruses can change hosts, with avian influenza, the HIV, and the causal agent of variant Creutzfeldt-Jacob encephalitis as well-known examples. Less well known, however, is that host jumps also occur with more complex pathogenic microorganisms such as bacteria and fungi. In extreme cases, these host jumps even cross kingdom of life barriers. A number of requirements need to be met to enable a microorganism to cross such kingdom barriers. Potential cross-kingdom pathogenic microorganisms must be able to come into close and frequent contact with potential hosts, and must be able to overcome or evade host defences. Reproduction on, in, or near the new host will ensure the transmission or release of successful genotypes. An unexpectedly high number of cross-kingdom host shifts of bacterial and fungal pathogens are described in the literature. Interestingly, the molecular mechanisms underlying these shifts show commonalities. The evolution of pathogenicity towards novel hosts may be based on traits that were originally developed to ensure survival in the microorganism's original habitat, including former hosts.
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Affiliation(s)
- Peter van Baarlen
- Laboratory of Phytopathology, Wageningen University, Wageningen, The Netherlands
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Almeida-Paes R, Pimenta MA, Pizzini CV, Monteiro PCF, Peralta JM, Nosanchuk JD, Zancopé-Oliveira RM. Use of mycelial-phase Sporothrix schenckii exoantigens in an enzyme-linked immunosorbent assay for diagnosis of sporotrichosis by antibody detection. CLINICAL AND VACCINE IMMUNOLOGY : CVI 2007; 14:244-9. [PMID: 17215334 PMCID: PMC1828849 DOI: 10.1128/cvi.00430-06] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
An enzyme-linked immunosorbent assay (ELISA) was developed for specific antibody detection in serum specimens of patients with sporotrichosis. The assay was made with mycelial-phase Sporothrix schenckii exoantigens and was tested against 90 sera from patients with different clinical forms of sporotrichosis. Potential cross-reactions were analyzed with 72 heterologous sera from patients with paracoccidioidomycosis, cryptococcosis, aspergillosis, histoplasmosis, tuberculosis, and American tegumentary leishmaniasis, as well as 76 sera from healthy controls. We found a sensitivity of 97% and a specificity of 89% in this assay. Some cross-reactions were seen, as observed in other immunoassays for the diagnosis of sporotrichosis. The ELISA appears to be especially useful for cutaneous forms of disease, since these are not promptly diagnosed with available immunoprecipitation or agglutination techniques. These results suggest that the ELISA using mycelial-phase S. schenckii exoantigens is a very sensitive diagnostic tool for the serodiagnosis of sporotrichosis and can be used in conjunction with conventional methods of diagnosis, particularly in cases where cross-reactions or false-positive results are experienced with the serodiagnosis.
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Affiliation(s)
- Rodrigo Almeida-Paes
- Serviço de Micologia do Instituto de Pesquisa Clínica Evandro Chagas, Fundação Oswaldo Cruz, Avenida Brasil, 4365 Manguinhos, 21045-900 Rio de Janeiro-RJ, Brazil
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Abstract
The endemic mycoses are diverse group of fungi that share several characteristics. They are able to cause disease in healthy hosts, they each occupy a specific ecologic niche in the environment, and they exhibit temperature dimorphism, existing as molds in the environment at temperature of 25 degrees C to 30 degrees C, and as yeasts, or spherules in the case of coccidioidomycosis, at body temperatures. This article discusses histoplasmosis and blastomycosis. Sporotrichosis, which differs in that it is usually a localized lymphocutaneous infection, is included because it shares the characteristics of endemic mycoses.
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Affiliation(s)
- Carol A Kauffman
- University of Michigan Medical School, Ann Arbor, MI 48109, USA.
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Kumar R, Kaushal V, Chopra H, Gupta R, Chhina DK, Kaushal RK, Mohan U. Pansinusitis due to Sporothrix schenckii. Mycoses 2005; 48:85-8. [PMID: 15679675 DOI: 10.1111/j.1439-0507.2004.01061.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Summary A case of mucocutaneous sporotrichosis presenting as mycotic pansinusitis with polyposis with intracranial and intraorbital extension in a patient from Punjab, India is described. The patient had nasal discharge, sneezing and nasal obstruction for 12 years, had undergone repeated surgeries (for endoscopic clearance) but had recurrence. Computerized tomography (CT) and magnetic resonance imaging (MRI) findings revealed pansinusitis. A definitive diagnosis of sporotrichosis was established by culture of Sporothrix schenckii, verification of its dimorphic character and a positive pathogenicity test. The patient was successfully treated with potassium iodide and itraconazole.
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Affiliation(s)
- R Kumar
- Department of Microbiology, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
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Chapman SW, Pappas P, Kauffmann C, Smith EB, Dietze R, Tiraboschi-Foss N, Restrepo A, Bustamante AB, Opper C, Emady-Azar S, Bakshi R. Comparative evaluation of the efficacy and safety of two doses of terbinafine (500 and 1000 mg day-1) in the treatment of cutaneous or lymphocutaneous sporotrichosis. Vergleichende Bewertung der Wirksamkeit und Sicherheit zweier Terbinafin-Dosierungen (500 und 1000 mg/Tag) in der Therapie der kutanen und lymphokutanen Sporotrichose. Mycoses 2004; 47:62-8. [PMID: 14998402 DOI: 10.1046/j.1439-0507.2003.00953.x] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The aim of this study was to evaluate the safety and efficacy of oral terbinafine (500 and 1000 mg day(-1)) in the treatment of cutaneous or lymphocutaneous sporotrichosis. A culture for Sporothrix schenckii was required for inclusion into this multicentre, randomized, double-blind, parallel-group study. Patients received either 250 mg b.i.d. or 500 mg b.i.d. oral terbinafine for up to a maximum of 24 weeks and were assessed up to 24 weeks post-treatment. The main efficacy outcome measure was cure, defined as no lesion and absence of adenopathy at the end of follow-up. Adverse events (AEs), laboratory tests, vital signs and ophthalmological examinations were also assessed. Sixty-three patients (14-85 years of age) were treated with 500 mg day(-1) (n = 28) or 1000 mg day(-1) terbinafine (n = 35). The majority of patients were cured after 12-24 weeks of treatment, and the response was dose-dependent throughout the study and at the end of follow-up. The cure rate was significantly higher in patients treated with 1000 mg day(-1) terbinafine compared with those treated with 500 mg day(-1) terbinafine (87% vs. 52%, respectively; P = 0.004). There were no cases of relapse after 24 weeks of follow-up in the 1000 mg day(-1) terbinafine group, compared with six relapses in the terbinafine 500 mg day(-1) group. Terbinafine was well tolerated and the frequency of drug-related AEs was slightly higher in the 1000 mg treatment group. Both doses of terbinafine were well-tolerated and effective for the treatment of sporotrichosis. The 1000 mg day(-1) terbinafine dose was more efficacious than 500 mg day(-1) in the treatment of cutaneous or lymphocutaneous sporotrichosis.
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Affiliation(s)
- S W Chapman
- University of Mississippi Medical Center, Jackson, MS, USA
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Lyon GM, Zurita S, Casquero J, Holgado W, Guevara J, Brandt ME, Douglas S, Shutt K, Warnock DW, Hajjeh RA. Population-based surveillance and a case-control study of risk factors for endemic lymphocutaneous sporotrichosis in Peru. Clin Infect Dis 2003; 36:34-9. [PMID: 12491199 DOI: 10.1086/345437] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2002] [Accepted: 09/30/2002] [Indexed: 11/03/2022] Open
Abstract
Population-based surveillance and a case-control study were conducted in Abancay, Peru, to estimate the burden of disease and to determine risk factors for sporadic lymphocutaneous sporotrichosis (LS). Laboratory records from local hospitals were reviewed for the years of 1997 and 1998, and prospective surveillance was conducted for the period of September 1998 through September 1999. A case-control study was conducted with 2 matched control subjects per case patient. The mean annual incidence was 98 cases per 100,000 persons. Children had an incidence 3 times higher than that for adults and were more likely to have LS lesions on the face and neck. Identified risk factors included owning a cat, playing in crop fields, having a dirt floor in the house, working mainly outdoors, and having a ceiling made of raw wood or conditions associated with a lower socioeconomic status. Decreased environmental exposure, such wearing protective clothing during construction activities for adults or limiting contact with cats and soil for children, and improvements in living spaces may decrease the incidence of LS.
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Affiliation(s)
- G M Lyon
- Epidemic Intelligence Service, Epidemiology Program Office, Division of Bacterial and Mycotic Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
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Abstract
PURPOSE To describe a patient with conjunctivitis. METHODS Case report and review of the literature. RESULTS A 34-year-old cattle farmer with no history of trauma developed gradual onset of an inflamed bulbar conjunctival mass associated with ipsilateral preauricular lymphadenopathy. Excisional biopsy of the conjunctival mass and subsequent histopathologic examination revealed suppurative granulomatous inflammation and small budding yeasts. Electron microscopy confirmed the presence of small intracellular and extracellular yeast organisms. Cultures grew the dimorphic fungi Treatment with oral itraconazole and topical fluconazole resulted in complete resolution of the infection. CONCLUSION characteristically infects the skin and regional lymphatics after penetrating trauma, but atraumatic infection of pulmonary mucosal surfaces can occur upon inhalation of the fungal spores. Our case report suggests that atraumatic exposure to may be sufficient to establish conjunctival infection.
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Affiliation(s)
- Diana E Hampton
- Molecular Pathogenesis of Eye Infection Research Center, Dean A. McGee Eye Institute, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma 73104, USA
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Mesa-Arango AC, Del Rocío Reyes-Montes M, Pérez-Mejía A, Navarro-Barranco H, Souza V, Zúñiga G, Toriello C. Phenotyping and genotyping of Sporothrix schenckii isolates according to geographic origin and clinical form of Sporotrichosis. J Clin Microbiol 2002; 40:3004-11. [PMID: 12149366 PMCID: PMC120692 DOI: 10.1128/jcm.40.8.3004-3011.2002] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Sporothrix schenckii isolates of fixed and lymphocutaneous clinical forms from Mexico (MX), Guatemala (GT), and Colombia (CO) as well as environmental isolates from MX were studied by analyzing their phenotypic characteristics (conidial length, thermotolerance by percent growth inhibition [GI] at 35 and 37 degrees C, median lethal dose [LD(50)]) and genotypic characteristics (by random amplified polymorphic DNA [RAPD] analysis-PCR). A significant difference (P < 0.01) in the mean conidial length of S. schenckii clinical isolates from CO ( = 4.03 +/- 1.04 microm) compared with those of clinical isolates from MX ( = 2.06 +/- 0.53 microm) and GT ( = 2.68 +/- 0.83 microm) was observed. The lowest thermotolerance, as determined by measurement of percent GI, was exhibited by isolates from CO at 35 degrees C ( = 50.1% +/- 15.9%) and 37 degrees C ( = 72.7% +/- 10.9%). In general, the highest virulence, as determined by measurement of the LD(50) for mice, was observed for the MX environmental isolates. RAPD analysis-PCR with 10-mer primers OPBG-01, OPBG-14, and OPBG-19 generated 52 reproducible bands. The 44 Sporothrix isolates fell into four major groups by hierarchical cluster analysis. The first group (group I), formed by 25 (of 27) isolates from MX, had two subgroups: subgroup Ia with 10 environmental isolates and subgroup Ib with 14 clinical isolates. The second group (group II) had two subgroups: subgroup IIa, formed by isolates from CO, and subgroup IIb, formed by isolates from GT. Groups III and IV each had only one clinical isolate from MX. A principal-component analysis of the same data yielded three distinct groups, depending on the geographical origins of the isolates, including the isolates in groups III and IV from MX, which were grouped with the isolates from MX by principal-component analysis. This study revealed that isolates from CO had low thermotolerances at 35 and 37 degrees C and could be associated with superficial skin lesions in patients with fixed clinical forms of sporotrichosis, the most frequent form of the disease in CO. Distinct patterns dependent on geographical origins were also revealed by RAPD analysis-PCR, but these had no relation to the clinical form of the disease.
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Affiliation(s)
- Ana Cecilia Mesa-Arango
- Departamento de Microbiología y Parasitología, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
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Affiliation(s)
- T De Araujo
- Department of Dermatology and Cutaneous Surgery, University of Miami School of Medicine, FL, USA
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Sykes JE, Torres SM, Armstrong PJ, Lindeman CJ. Itraconazole for treatment of sporotrichosis in a dog residing on a Christmas tree farm. J Am Vet Med Assoc 2001; 218:1440-3, 1421. [PMID: 11345307 DOI: 10.2460/javma.2001.218.1440] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Sporotrichosis was diagnosed in a 2-year-old male Golden Retriever that was allowed to roam free on the owner's Christmas tree farm in Minnesota. Clinical signs had been evident for 1 month and included swelling of the claw bed of the third digit on the left forelimb and a fluctuant nodular lesion in the area of the left carpus. Few organisms were seen in affected tissues, and diagnosis was confirmed on the basis of results of fungal culture. The condition responded to treatment with itraconazole. Previous reports of sporotrichosis in dogs have described lesions that were distributed predominantly on the head, ears, and trunk. A history of exposure to environments that favor survival of the organism may be an important consideration when evaluating animals suspected to have sporotrichosis. To the authors' knowledge, use of itraconazole to treat a dog with sporotrichosis has not been reported previously.
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Affiliation(s)
- J E Sykes
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul 55108, USA
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Abstract
Although first reported more than a century ago, sporotrichosis, caused by Sporothrix schenckii, still remains a poorly studied disease. Results from recently published studies on sporotrichosis in endemic areas are summarised and assembled with previous findings, providing a comprehensive review that highlights the needs for further research.
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Affiliation(s)
- B Bustamante
- Alexander von Humboldt' Institute of Tropical Medicine, Cayetano Heredia University, Lima, Peru.
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