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Rosli MZ, Mohd-Taib FS, Khoo JJ, Chee HY, Wong YP, Shafie NJ, Mohamed NZ, AbuBakar S, Nor SM. A Multi-landscape Assessment of Leptospira Prevalence on a Diversity of Small Mammals. ECOHEALTH 2023; 20:208-224. [PMID: 37103759 DOI: 10.1007/s10393-023-01637-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 03/08/2023] [Indexed: 06/19/2023]
Abstract
Leptospirosis is a major zoonotic disease, especially in the tropics, and rodents were known to be carriers of this bacterium. There was established information on Leptospira prevalence among animal reservoirs in human-dominated landscapes from previous literature. However, there was very little focus given comparing the prevalence of Leptospira in a wide range of habitats. An extensive sampling of small mammals from various landscapes was carried out, covering oil palm plantations, paddy fields, recreational forests, semi-urbans, and wet markets in Peninsular Malaysia. This study aims to determine the prevalence of pathogenic Leptospira in a diversity of small mammals across different landscapes. Cage-trapping was deployed for small mammals' trappings, and the kidneys of captured individuals were extracted, for screening of pathogenic Leptospira by polymerase chain reaction (PCR) using LipL32 primer. Eight microhabitat parameters were measured at each study site. Out of 357 individuals captured, 21 (5.9%) were positive for pathogenic Leptospira of which recreational forest had the highest prevalence (8.8%) for landscape types, whereas Sundamys muelleri shows the highest prevalence (50%) among small mammals' species. Microhabitat analysis reveals that rubbish quantity (p < 0.05) significantly influenced the Leptospira prevalence among small mammals. Furthermore, nMDS analysis indicates that the presence of faeces, food waste, and exposure to humans in each landscape type also were linked with high prevalence of pathogenic Leptospira among the small mammals. This study supplements previous studies on pathogenic Leptospira prevalence across different landscape types, and the major microhabitat factors associated with Leptospira prevalence. This information is crucial for epidemiological surveillance and habitat management to curb the possibility of the disease outbreaks.
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Affiliation(s)
- Muhammad Zahin Rosli
- Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
| | - Farah Shafawati Mohd-Taib
- Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia.
| | - Jing Jing Khoo
- Tropical Infectious Diseases Research and Education Centre, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Hui Yee Chee
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Malaysia
| | - Yien Ping Wong
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Malaysia
| | - Nur Juliani Shafie
- School of Marine and Environmental Sciences, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia
| | - Nor Zalipah Mohamed
- School of Marine and Environmental Sciences, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia
| | - Sazaly AbuBakar
- Tropical Infectious Diseases Research and Education Centre, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Shukor Md Nor
- Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
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Yan X, Fang Y, Li Y, Jia Z, Zhang B. Risks, Epidemics, and Prevention Measures of Infectious Diseases in Major Sports Events: Scoping Review. JMIR Public Health Surveill 2022; 8:e40042. [PMID: 36459401 PMCID: PMC9758642 DOI: 10.2196/40042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 11/01/2022] [Accepted: 11/04/2022] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND Major sports events are the focus of the world. However, the gathering of crowds during these events creates huge risks of infectious diseases transmission, posing a significant public health threat. OBJECTIVE The aim of this study was to systematically review the epidemiological characteristics and prevention measures of infectious diseases at major sports events. METHODS The procedure of this scoping review followed Arksey and O'Malley's five-step methodological framework. Electronic databases, including PubMed, Web of Science, Scopus, and Embase, were searched systematically. The general information (ie, publication year, study type) of each study, sports events' features (ie, date and host location), infectious diseases' epidemiological characteristics (ie, epidemics, risk factors), prevention measures, and surveillance paradigm were extracted, categorized, and summarized. RESULTS A total of 24,460 articles were retrieved from the databases and 358 studies were included in the final data synthesis based on selection criteria. A rapid growth of studies was found over recent years. The number of studies investigating epidemics and risk factors for sports events increased from 16/254 (6.3%) before 2000 to 201/254 (79.1%) after 2010. Studies focusing on prevention measures of infectious diseases accounted for 85.0% (238/280) of the articles published after 2010. A variety of infectious diseases have been reported, including respiratory tract infection, gastrointestinal infection, vector-borne infection, blood-borne infection, and water-contact infection. Among them, respiratory tract infections were the most concerning diseases (250/358, 69.8%). Besides some routine prevention measures targeted at risk factors of different diseases, strengthening surveillance was highlighted in the literature. The surveillance system appeared to have gone through three stages of development, including manual archiving, network-based systems, and automated intelligent platforms. CONCLUSIONS This critical summary and collation of previous empirical evidence is meaningful to provide references for holding major sports events. It is essential to improve the surveillance techniques for timely detection of the emergence of epidemics and to improve risk perception in future practice.
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Affiliation(s)
- Xiangyu Yan
- School of Public Health, Peking University, Beijing, China
| | - Yian Fang
- School of Public Health, Peking University, Beijing, China
| | - Yongjie Li
- School of Basic Medical Sciences, Peking University, Beijing, China
| | - Zhongwei Jia
- School of Public Health, Peking University, Beijing, China
- Center for Intelligent Public Health, Institute for Artificial Intelligence, Peking University, Beijing, China
- Center for Drug Abuse Control and Prevention, National Institute of Health Data Science, Peking University, Beijing, China
| | - Bo Zhang
- School of Public Health, Peking University, Beijing, China
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Vibert M, Guimard T, Brochard J, Takoudju EM, Larrose C, Boutoille D, Le Turnier P. Leptospirosis in retirees living in rural areas: a poorly recognized emerging problem in mainland France? Open Forum Infect Dis 2022; 9:ofac269. [PMID: 35854997 PMCID: PMC9290540 DOI: 10.1093/ofid/ofac269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 05/27/2022] [Indexed: 11/15/2022] Open
Abstract
Abstract
Among 40 patients diagnosed with leptospirosis in 3 hospitals of western mainland France between 2014 and 2018 half were at least 60 years old and retired. Their exposure factors were mainly rural residential environment with limited remarkable risk factors. Better awareness and information on leptospirosis appear necessary in this population.
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Affiliation(s)
| | - Thomas Guimard
- Post Emergency and Infectious Diseases department, La Roche sur Yon Hospital , La Roche sur Yon, France
| | - Julia Brochard
- Polyvalent Medicine department, Saint Nazaire Hospital , Saint Nazaire, France
| | - Eve-Marie Takoudju
- Microbiology department, La Roche sur Yon Hospital , La Roche sur Yon, France
| | - Catherine Larrose
- Medical biology department, Nantes University Hospital , Nantes, France
| | - David Boutoille
- Nantes University Hospital Infectious Diseases department, Nantes University Hospital, Nantes, France and INSERM CIC 1413, , Nantes, France
| | - Paul Le Turnier
- Nantes University Hospital Infectious Diseases department, Nantes University Hospital, Nantes, France and INSERM CIC 1413, , Nantes, France
- Infectious Diseases department, Cayenne Hospital , Cayenne, French Guiana
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Soo ZMP, Khan NA, Siddiqui R. Leptospirosis: Increasing importance in developing countries. Acta Trop 2020; 201:105183. [PMID: 31542372 DOI: 10.1016/j.actatropica.2019.105183] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 08/30/2019] [Accepted: 09/18/2019] [Indexed: 12/18/2022]
Abstract
Leptospirosis is a zoonotic disease caused by the pathogenic helical spirochetes, Leptospira. Symptoms include sudden-onset fever, severe headaches, muscle pain, nausea and chills. Leptospirosis is endemic in developing countries such as Malaysia, India, Sri Lanka, and Brazil where thousands of cases are reported annually. The disease risk factors include the high population of reservoirs, environmental factors, recreational factors, and occupational factors. To end the endemicity of leptospirosis, these factors need to be tackled. The management of leptospirosis needs to be refined. Early diagnosis remains a challenge due to a lack of clinical suspicion among physicians, its non-specific symptoms and a limited availability of rapid point-of-care diagnostic tests. The purpose of this review is to provide insight into the status of leptospirosis in developing countries focusing on the risk factors and to propose methods for the improved management of the disease.
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Affiliation(s)
- Zoey May Pheng Soo
- Department of Biological Sciences, School of Science and Technology, Sunway University, Selangor, Malaysia
| | - Naveed Ahmed Khan
- Department of Biology, Chemistry and Environmental Sciences, College of Arts and Sciences, American University of Sharjah, University City, Sharjah, United Arab Emirates.
| | - Ruqaiyyah Siddiqui
- Department of Biology, Chemistry and Environmental Sciences, College of Arts and Sciences, American University of Sharjah, University City, Sharjah, United Arab Emirates
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Marquez A, Khalil RA, Fourel I, Ovarbury T, Pinot A, Rosine A, Thalmensi G, Jaffory G, Kodjo A, Benoit E, Lattard V. Resistance to anticoagulant rodenticides in Martinique could lead to inefficient rodent control in a context of endemic leptospirosis. Sci Rep 2019; 9:13491. [PMID: 31530819 PMCID: PMC6749056 DOI: 10.1038/s41598-019-49661-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 08/23/2019] [Indexed: 12/16/2022] Open
Abstract
Leptospirosis is a re-emergent worldwide zoonosis. It is endemic in Martinique where transmission conditions are favourable. Humans are usually infected through contact with water contaminated with urine of rodents. Recent human leptospirosis outbreaks in Martinique require today effective rodent management to prevent leptospirosis transmission. Nowadays, use of anticoagulant rodenticides (AR) is the main method implemented to control rodent populations. Nevertheless, intensive use of these AR has selected worldwide many VKORC1-based resistant rodent strains to AR. Our aim was to characterize the sensitivity of Martinique commensal rodents to AR to better prevent leptospirosis transmission. Resistance of house mice to first-generation and in rare cases even to second-generation ARs were clearly demonstrated in Martinique with the detection of the Y139C mutation with a very high allelic frequency of 40% and the A26T/Y139C double-mutation with an allelic frequency of 0.9%. In black rat, the most prevalent rodent in Martinique, 3 new Vkorc1 coding mutations were detected, the H68N, A115T and S149N mutations associated with moderate resistance to first generation AR. Therefore, rodent management in Martinique must be carried carefully to avoid resistance diffusion and maintain long-term effective rodent management, to be able to efficiently prevent leptospirosis transmission.
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Affiliation(s)
- Aurélie Marquez
- USC 1233 RS2GP, VetAgro Sup, INRA, Univ Lyon, F-69280, Marcy l'étoile, France
| | - Rami Abi Khalil
- USC 1233 RS2GP, VetAgro Sup, INRA, Univ Lyon, F-69280, Marcy l'étoile, France
| | - Isabelle Fourel
- USC 1233 RS2GP, VetAgro Sup, INRA, Univ Lyon, F-69280, Marcy l'étoile, France
| | - Teddy Ovarbury
- FREDON Martinique, Route du Lycée agricole, Chemin Tolobe, Croix Rivail, 97224, Ducos, Martinique
| | - Adrien Pinot
- UMR 0874 UREP, VetAgro Sup, INRA, Univ Clermont, Clermont-Ferrand, France
| | - Armand Rosine
- FREDON Martinique, Route du Lycée agricole, Chemin Tolobe, Croix Rivail, 97224, Ducos, Martinique
| | - Gérard Thalmensi
- ARS Martinique, Centre d'affaires AGORA, Zac de l'Etang Z'abricot, Pointe des grives, CS 80 656, 97263, Fort de France Cedex, Martinique
| | - Georges Jaffory
- ARS Martinique, Centre d'affaires AGORA, Zac de l'Etang Z'abricot, Pointe des grives, CS 80 656, 97263, Fort de France Cedex, Martinique
| | - Angeli Kodjo
- USC 1233 RS2GP, VetAgro Sup, INRA, Univ Lyon, F-69280, Marcy l'étoile, France
| | - Etienne Benoit
- USC 1233 RS2GP, VetAgro Sup, INRA, Univ Lyon, F-69280, Marcy l'étoile, France
| | - Virginie Lattard
- USC 1233 RS2GP, VetAgro Sup, INRA, Univ Lyon, F-69280, Marcy l'étoile, France.
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DeNizio JE, Hewitt DA. Infection from Outdoor Sporting Events-More Risk than We Think? SPORTS MEDICINE - OPEN 2019; 5:37. [PMID: 31414195 PMCID: PMC6694362 DOI: 10.1186/s40798-019-0208-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 07/28/2019] [Indexed: 12/19/2022]
Abstract
Competitive sports that involve extensive contact with mud are commonly held events and growing in popularity. However, the natural environment contributes to infection risks, and these events have been implicated in multiple infectious disease outbreaks. Soils and mud contain rich microbial communities and can include pathogens (including viruses, bacteria, and parasites), thereby offering risk of infection; there is also a risk of disease due to shedding, by participants, of pathogens directly into the environment. These disease risks are ubiquitous and are present in the most developed countries, as well as elsewhere. Prevention of the further spread of mud sport-related infections through secondary infections to non-participant community members is of critical importance. We recommend shifts in practice and policy, such as site condition monitoring, improved messaging with regards to infections risk, and implementation of pre- and post-event wash stations to reduce these risks.
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Affiliation(s)
- Jamie E DeNizio
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
| | - David A Hewitt
- Department of Biology, University of Pennsylvania, 102 Leidy Laboratories, 433 S University Ave, Philadelphia, PA, 19104, USA.
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Kallel H, Rozé B, Pons B, Mayence C, Mathien C, Resiere D, Melot B, Hommel D, Mehdaoui H, Carles M. Infections tropicales graves dans les départements français d’Amérique, Antilles françaises et Guyane. MEDECINE INTENSIVE REANIMATION 2019. [DOI: 10.3166/rea-2019-0103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Les Antilles-Guyane (AG) sont les départements français du continent américain, situés en zone intertropicale. La diversité des écosystèmes ainsi que le climat tropical à très forte pluviosité exposent à un vaste panel de pathologies infectieuses. Ces territoires sont de plus l’objet de mouvements importants de populations, voyageurs ou migrants, ce qui joue un rôle significatif dans le développement d’épidémies et/ou de pathologies émergentes. Ces pathologies infectieuses dites « tropicales » peuvent nécessiter une prise en charge en réanimation. Nous rapportons ici les principales données récentes concernant ces pathologies (hors infection liée au VIH) ainsi que les stratégies diagnostiques et thérapeutiques, à l’usage des réanimateurs amenés à exercer en zone tropicale AG ou recevant en métropole des patients issus de cette région.
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Pratt N, Rajeev S. Leptospira seroprevalence in animals in the Caribbean region: A systematic review. Acta Trop 2018; 182:34-42. [PMID: 29457993 DOI: 10.1016/j.actatropica.2018.02.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 01/14/2018] [Accepted: 02/11/2018] [Indexed: 12/25/2022]
Abstract
This systematic review summarises the data published on the Leptospira seroprevalence, serovar diversity and distribution among animal species in the Caribbean region. Following Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines, and checklist, relevant articles were identified and data were extracted and recorded. The review provided Leptospira seroprevalence data from 16 Caribbean islands (Barbados, Trinidad, Grenada, Puerto Rico, Saint Croix, St. Kitts and Nevis, Jamaica, Antigua, Carriacou, Dominica, Guadalupe, Martinique, Monserrat, St. Lucia, St. Maarten, and St. Vincent) in a variety of animal species. Reviewing the literature highlighted the limited amount of data available from limited number of islands. Many of the studies conducted have recorded seroprevalences based on variable and small samples sizes. Besides, serovar panels used for MAT were not consistent between studies. The review indicates that the Leptospira exposure in a given geographic location may change with time and climatic and environmental conditions, and highlights the need to conduct continual surveillance in tropical countries where the climate supports the survival of Leptospira in the environment. Specific attention must be given to standardization of MAT panels and protocols and providing training across laboratories involved in testing. Further, animal and environment testing to isolate and identify circulating Leptospira spp. in a geographic region must actively be pursued. This knowledge is important to implement geographically specific control programs, as risk factors of Leptospira transmission is favoured by various factors such as change in climatic conditions, urbanization, encroachment of wildlife inhabitation, import/export of animals, increase in adventure travel, and water related recreational activities.
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Casanovas-Massana A, Costa F, Riediger IN, Cunha M, de Oliveira D, Mota DC, Sousa E, Querino VA, Nery N, Reis MG, Wunder EA, Diggle PJ, Ko AI. Spatial and temporal dynamics of pathogenic Leptospira in surface waters from the urban slum environment. WATER RESEARCH 2018; 130:176-184. [PMID: 29220718 PMCID: PMC5767135 DOI: 10.1016/j.watres.2017.11.068] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 11/20/2017] [Accepted: 11/29/2017] [Indexed: 05/09/2023]
Abstract
Leptospirosis has emerged as an important urban health problem as slum settlements have expanded worldwide. Yet the dynamics of the environmentally transmitted Leptospira pathogen has not been well characterized in these settings. We used a stratified dense sampling scheme to study the dynamics of Leptospira abundance in surface waters from a Brazilian urban slum community. We collected surface water samples during the dry, intermediate and rainy seasons within a seven-month period and quantified pathogenic Leptospira by quantitative PCR (qPCR). We used logistic and linear mixed models to identify factors that explained variation for the presence and concentration of Leptospira DNA. Among 335 sewage and 250 standing water samples, Leptospira DNA were detected in 36% and 34%, respectively. Among the 236 samples with positive results geometric mean Leptospira concentrations were 152 GEq/mL. The probability of finding Leptospira DNA was higher in sewage samples collected during the rainy season when increased leptospirosis incidence occurred, than during the dry season (47.2% vs 12.5%, respectively, p = 0.0002). There was a marked spatial and temporal heterogeneity in Leptospira DNA distribution, for which type of water, elevation, and time of day that samples were collected, in addition to season, were significant predictors. Together, these findings indicate that Leptospira are ubiquitous in the slum environment and that the water-related risk to which inhabitants are exposed is low. Seasonal increases in Leptospira presence may explain the timing of leptospirosis outbreaks. Effective prevention will need to consider the spatial and temporal dynamics of pathogenic Leptospira in surface waters to reduce the burden of the disease.
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Affiliation(s)
- Arnau Casanovas-Massana
- Department of Epidemiology of Microbial Diseases, School of Public Health, Yale University, 60 College Street, New Haven, CT, USA
| | - Federico Costa
- Department of Epidemiology of Microbial Diseases, School of Public Health, Yale University, 60 College Street, New Haven, CT, USA; Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Ministério da Saúde, Rua Waldemar Falcão, 121, Salvador, Bahia, Brazil; Instituto de Saúde Coletiva, Universidade Federal da Bahia, Rua Basílio da Gama, s/n, Campus Universitário Canela, Salvador, Bahia, Brazil
| | - Irina N Riediger
- Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Ministério da Saúde, Rua Waldemar Falcão, 121, Salvador, Bahia, Brazil; Laboratório Central do Estado do Paraná, Curitiba, Paraná, Brazil, Rua Sebastiana Santana Fraga, 1001, Guatupê, São José dos Pinhais, Paraná, Brazil
| | - Marcelo Cunha
- Escola Nacional de Saúde Pública, Fundação Oswaldo Cruz, Rua Leopoldo Bulhões, 1480 - Manguinhos, Rio de Janeiro, Brazil
| | - Daiana de Oliveira
- Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Ministério da Saúde, Rua Waldemar Falcão, 121, Salvador, Bahia, Brazil
| | - Diogenes C Mota
- Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Ministério da Saúde, Rua Waldemar Falcão, 121, Salvador, Bahia, Brazil
| | - Erica Sousa
- Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Ministério da Saúde, Rua Waldemar Falcão, 121, Salvador, Bahia, Brazil
| | - Vladimir A Querino
- Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Ministério da Saúde, Rua Waldemar Falcão, 121, Salvador, Bahia, Brazil
| | - Nivisson Nery
- Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Ministério da Saúde, Rua Waldemar Falcão, 121, Salvador, Bahia, Brazil
| | - Mitermayer G Reis
- Department of Epidemiology of Microbial Diseases, School of Public Health, Yale University, 60 College Street, New Haven, CT, USA; Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Ministério da Saúde, Rua Waldemar Falcão, 121, Salvador, Bahia, Brazil
| | - Elsio A Wunder
- Department of Epidemiology of Microbial Diseases, School of Public Health, Yale University, 60 College Street, New Haven, CT, USA
| | - Peter J Diggle
- Faculty of Health and Medicine, University of Lancaster, Lancaster LA1 4YG, United Kingdom
| | - Albert I Ko
- Department of Epidemiology of Microbial Diseases, School of Public Health, Yale University, 60 College Street, New Haven, CT, USA; Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Ministério da Saúde, Rua Waldemar Falcão, 121, Salvador, Bahia, Brazil.
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Peters A, Vokaty A, Portch R, Gebre Y. Leptospirosis in the Caribbean: a literature review. Rev Panam Salud Publica 2017; 41:e166. [PMID: 31384278 PMCID: PMC6650629 DOI: 10.26633/rpsp.2017.166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Accepted: 06/21/2017] [Indexed: 01/04/2023] Open
Abstract
Objective To describe leptospirosis epidemiology, seroprevalence, and serovars among humans and animals in the Caribbean from 1979 - 2013. Methods A retrospective study of the literature was performed on the general epidemiology, historical records, and geographical locations of leptospirosis outbreaks and cases in the Caribbean from 1979 - 2013. The primary sources of information were identified with PubMed Central, Google Scholar, CAREC, CaribVET, and The School of Veterinary Medicine at the University of the West Indies. Search terms used were: "human leptospirosis," "animal leptospirosis," "serovars," "livestock," "seroprevalence," "Caribbean countries," "risk factors," "confirmed cases," "suspected cases," "MAT," and "ELISA." Confirmed and suspected cases of human and animal leptospirosis were identified through laboratory analysis. Results Most cases of leptospirosis occurred during the rainy season (June - December) and had a positive correlation with flood conditions. The disease was more prevalent in males than females due to behavioral and occupational exposure. The highest incidence rates of human leptospirosis were recorded in Barbados, Trinidad and Tobago, and Jamaica. In animals, leptospirosis has been found in rodents, livestock, and dogs in many Caribbean countries. Inadequate active surveillance and misdiagnosis of human leptospirosis has contributed to under-reporting of the disease. Conclusion This review highlights the epidemiology and distribution of leptospirosis in the Caribbean. Prevalence rates and serovars vary greatly among the countries. Leptospirosis poses a significant health risk for humans and animals in the Caribbean and requires a "One Health" multisectoral approach to reduce incidence rates and protect at-risk individuals. Increased laboratory capacity to identify leptospirosis cases is required, along with awareness campaigns for both the public and animal and human health professionals.
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Affiliation(s)
- Abena Peters
- Pan American Health Organization (PAHO) Country Office, Port of Spain, Trinidad and Tobago. Pan American Health Organization (PAHO) Country Office, Port of Spain, Trinidad and Tobago
| | - Alexandra Vokaty
- Pan American Health Organization (PAHO) Country Office, Port of Spain, Trinidad and Tobago. Pan American Health Organization (PAHO) Country Office, Port of Spain, Trinidad and Tobago
| | - Richard Portch
- Pan American Health Organization (PAHO) Country Office, Port of Spain, Trinidad and Tobago. Pan American Health Organization (PAHO) Country Office, Port of Spain, Trinidad and Tobago
| | - Yitades Gebre
- PAHO Country Office Paramaribo Suriname PAHO Country Office, Paramaribo, Suriname
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Brinker AJ, Blazes DL. An outbreak of Leptospirosis among United States military personnel in Guam. TROPICAL DISEASES TRAVEL MEDICINE AND VACCINES 2017; 3:16. [PMID: 29093825 PMCID: PMC5661914 DOI: 10.1186/s40794-017-0059-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 09/28/2017] [Indexed: 12/22/2022]
Abstract
Background Leptospirosis is a bacterial zoonotic disease with worldwide distribution. Case presentation We describe and discuss the clinical course of a leptospirosis outbreak in a running club called the hash house harriers on Guam. Conclusions Leptospirosis is a potentialy life threatening disease, and has had a reemergence given the popularity of travel adventure sports, teams, and clubs around the world. This case presentation highlights the robust prescence of leptospirosis on Guam.
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Affiliation(s)
- Alyson J Brinker
- Guam Naval Hospital, Yigo, Guam.,U.S. Navy Hospital Guam, PSC 490 Box 7606 FPO, AP 96538-1600, Tutuhan, Guam
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Gonwong S, Chuenchitra T, Khantapura P, Islam D, Ruamsap N, Swierczewski BE, Mason CJ. Nationwide Seroprevalence of Leptospirosis among Young Thai Men, 2007-2008. Am J Trop Med Hyg 2017; 97:1682-1685. [PMID: 29016321 PMCID: PMC5805037 DOI: 10.4269/ajtmh.17-0163] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Leptospirosis, a global neglected zoonotic disease, is an important public health problem in Thailand. Nonspecific symptoms, lack of laboratory confirmation, and underreporting contribute to its neglected disease status. To better understand the distribution of leptospirosis exposure in Thailand, a retrospective leptospirosis seroprevalence study was conducted on repository serum specimens obtained from young Thai men entering the Royal Thai Army during 2007–2008. The overall nationwide leptospirosis IgG seroprevalence among these young Thai men was 28% (95% confidence interval = 26–30%) and the range by province was 10–52% confirming leptospirosis as an endemic disease throughout Thailand. Seroprevalence was highest in individuals with the lowest education from rural areas, and higher seroprevalence was found in the north and south regions contrary to current morbidity reports. Improvement in reporting and surveillance as well as better access to leptospirosis diagnostics will increase leptospirosis awareness and detection and enable more effective public health interventions.
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Affiliation(s)
- Siriphan Gonwong
- Department of Enteric Diseases, and Division of Research, Armed Forces Research Institute of Medical Sciences, Bangkok, Thailand
| | - Thippawan Chuenchitra
- Department of Enteric Diseases, and Division of Research, Armed Forces Research Institute of Medical Sciences, Bangkok, Thailand
| | - Patchariya Khantapura
- Department of Enteric Diseases, and Division of Research, Armed Forces Research Institute of Medical Sciences, Bangkok, Thailand
| | - Dilara Islam
- Department of Enteric Diseases, and Division of Research, Armed Forces Research Institute of Medical Sciences, Bangkok, Thailand
| | - Nattaya Ruamsap
- Department of Enteric Diseases, and Division of Research, Armed Forces Research Institute of Medical Sciences, Bangkok, Thailand
| | - Brett E Swierczewski
- Department of Enteric Diseases, and Division of Research, Armed Forces Research Institute of Medical Sciences, Bangkok, Thailand
| | - Carl J Mason
- Department of Enteric Diseases, and Division of Research, Armed Forces Research Institute of Medical Sciences, Bangkok, Thailand
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Erickson T. Epidemiology of Leptospirosis in Mesoamerica: Historical Perspectives on One Health Transmission. CURRENT TROPICAL MEDICINE REPORTS 2017. [DOI: 10.1007/s40475-017-0109-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Devlin AA, Halvorsen PJ, Miller JC, Laster SM. Il-10 deficient mice express IFN-γ mRNA and clear Leptospira interrogans from their kidneys more rapidly than normal C57BL/6 mice. Immunobiology 2017; 222:768-777. [PMID: 28237664 DOI: 10.1016/j.imbio.2017.02.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 02/07/2017] [Accepted: 02/08/2017] [Indexed: 12/28/2022]
Abstract
Leptospira interrogans (L. interrogans), the causative agent of leptospirosis, is a widespread zoonotic spirochete that lives a dual lifestyle. L. interrogans infects mice, rats, and wildlife in a persistent and asymptomatic fashion, while also causing productive and acute infections in other mammals such as humans and hamsters. Infections in humans can be fatal, accompanied by a cytokine storm and shock-like symptoms. Production of IL-10 has been noted in both rodent and human infections which has led a number of investigators to hypothesize that IL-10 plays a role in the pathogenesis of this disease. To test this hypothesis we have compared bacteremia and the cytokine response of normal and IL-10 deficient C57Bl/6 mice following ip infection with L. interrogans. In normal mice bacterial 16s mRNA was detected in both lung and kidney tissues within a day after infection. Levels of 16s mRNA then dropped in both organs with complete elimination from the lung by day 3 but persistence in the kidney for 7days after infection. In contrast, in IL-10 deficient mice, the organism was eliminated more rapidly from the kidney. We found that infection of both control and IL-10 deficient mice produced similar levels of a number of pro-inflammatory cytokine mRNAs. On the other hand, IFN-γ mRNA was only induced in IL-10 deficient mice. These results support the hypothesis that L. interrogans ability to induce IL-10, which in turn prevents production of IFN-γ and inhibits T cell immunity, may contribute to the persistent growth of this microorganism in the murine kidney.
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Affiliation(s)
- Amy A Devlin
- Reynolds American, Inc. 401 N. Main St., Winston Salem, NC 27101, United States
| | - Priya J Halvorsen
- Immunity, Inflammation and Disease Laboratory, Division of Intramural Research, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC, United States
| | - Jennifer C Miller
- Galaxy Diagnostics, Inc. 7020 Kit Creek Rd., Ste 130, Research Triangle Park, NC 27709, United States
| | - Scott M Laster
- Department of Biological Sciences, North Carolina State University, Raleigh, NC 27695, United States.
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Jayaraman PA, Devlin AA, Miller JC, Scholle F. The adaptor molecule Trif contributes to murine host defense during Leptospiral infection. Immunobiology 2016; 221:964-74. [PMID: 27259371 DOI: 10.1016/j.imbio.2016.05.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 05/03/2016] [Accepted: 05/23/2016] [Indexed: 12/17/2022]
Abstract
Leptospirosis is a zoonotic disease and is caused by pathogenic species of the Leptospira genus, including Leptospira interrogans (L. interrogans). Humans, domestic and wild animals are susceptible to acute or chronic infection. The innate immune response is a critical defense mechanism against Leptospira interrogans, and has been investigated in mouse models. Murine Toll-like receptors (TLRs) have been shown to be key factors in sensing and responding to L. interrogans infection. Specifically, TLR2, TLR4 and the TLR adaptor molecule MyD88 are essential for host defense against L. interrogans; however, the role of the TLR adaptor molecule TIR-domain-containing adaptor-inducing interferon β (TRIF) in the response to L. interrogans has not been previously determined. In the present study, TRIF was found to play an important role during leptospiral infection. Following challenge with L. interrogans, Trif(-/-) mice exhibited delayed weight gain compared to wild-type mice. Moreover, Trif(-/-) mice exhibited an increase in L. interrogans burden in the kidneys, lungs, and blood at early time points (less than 7days post infection). Multiple components of the innate immune responses were dampened in response to leptospiral infection including transcription and production of cytokines, and the humoral response, which suggested that TRIF contributes to expression and production of cytokines important for the host defense against L. interrogans.
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Affiliation(s)
- Priya A Jayaraman
- Department of Biological Sciences, North Carolina State University, Raleigh, NC, United States
| | - Amy A Devlin
- Department of Biological Sciences, North Carolina State University, Raleigh, NC, United States
| | - Jennifer C Miller
- Department of Biological Sciences, North Carolina State University, Raleigh, NC, United States
| | - Frank Scholle
- Department of Biological Sciences, North Carolina State University, Raleigh, NC, United States.
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16
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Abstract
We report herein the investigation of a leptospirosis outbreak occurring in triathlon competitors on Réunion Island, Indian Ocean. All participants were contacted by phone or email and answered a questionnaire. Detection and molecular characterization of pathogenic Leptospira was conducted in inpatients and in rodents trapped at the vicinity of the event. Of the 160 athletes competing, 101 (63·1%) agreed to participate in the study. Leptospirosis was biologically confirmed for 9/10 suspected cases either by real-time PCR or serological tests (MAT or ELISA). The total attack rate, children's attack rate, swimmers' attack rate, and the attack rate in adult swimmers were respectively estimated at 8·1% [95% confidence interval (CI) 4·3-14·7], 0%, 12·7% (95% CI 6·8-22·4) and 23·1% (95% CI 12·6-33·8). Leptospirosis cases reported significantly more wounds [risk ratio (RR) 4·5, 95% CI 1·6-13], wore complete neoprene suits less often (RR 4·3, 95% CI 1·3-14·5) and were most frequently unlicensed (RR 6·6, 95% CI 2·9-14·8). The epidemiological investigation supported that some measures such as the use of neoprene suits proved efficient in protecting swimmers against infection. PCR detection in rats revealed high Leptospira infection rates. Partial sequencing of the 16S gene and serology on both human and animal samples strongly suggests that rats were the main contaminators and were likely at the origin of the infection in humans.
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Dupouey J, Faucher B, Edouard S, Richet H, Kodjo A, Drancourt M, Davoust B. Human leptospirosis: an emerging risk in Europe? Comp Immunol Microbiol Infect Dis 2013; 37:77-83. [PMID: 24388481 DOI: 10.1016/j.cimid.2013.12.002] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2013] [Revised: 12/02/2013] [Accepted: 12/07/2013] [Indexed: 12/23/2022]
Abstract
Leptospirosis has been reemerging in both developed and developing countries including Europe, where, this phenomenon has notably been associated with urban transmission. However, the comprehensive data that are needed to fully understand the ongoing epidemiological trends are lacking. In this article, we report surveillance data from throughout Europe, especially in France, to have an overview of this neglected disease in temperate countries. Our results underline the important role of wild rodents as reservoir of leptospirosis, and highlight the potential danger of a reemergence of this under-reported infectious disease in European cities, associated with the important expansion of the rat population in urban areas.
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Affiliation(s)
- Julien Dupouey
- Fédération de Bactériologie-Hygiène-Virologie, Centre Hospitalo-Universitaire La Timone, 264 rue Saint-Pierre, 13385 Marseille Cedex 05, France
| | - Benoît Faucher
- Service des Maladies Infectieuses, CHU Hôpital Nord, Assistance Publique-Hôpitaux de Marseille, 13015 Marseille, France
| | - Sophie Edouard
- Unité de recherche sur les maladies infectieuses et tropicales émergentes (URMITE), CNRS UMR 7278 IRD 198 INSERM U1095 Aix-Marseille Université, Facultés de médecine et de pharmacie, 27 Bd Jean Moulin, 13385 Marseille Cedex 05, France
| | - Hervé Richet
- Fédération de Bactériologie-Hygiène-Virologie, Centre Hospitalo-Universitaire La Timone, 264 rue Saint-Pierre, 13385 Marseille Cedex 05, France; Unité de recherche sur les maladies infectieuses et tropicales émergentes (URMITE), CNRS UMR 7278 IRD 198 INSERM U1095 Aix-Marseille Université, Facultés de médecine et de pharmacie, 27 Bd Jean Moulin, 13385 Marseille Cedex 05, France
| | - Angeli Kodjo
- Laboratoire des leptospires, Equipe PERS, VetAgro Sup, Campus Vétérinaire de Lyon, 1 Av Bourgelat, 69280 Marcy l'Etoile, France
| | - Michel Drancourt
- Fédération de Bactériologie-Hygiène-Virologie, Centre Hospitalo-Universitaire La Timone, 264 rue Saint-Pierre, 13385 Marseille Cedex 05, France; Unité de recherche sur les maladies infectieuses et tropicales émergentes (URMITE), CNRS UMR 7278 IRD 198 INSERM U1095 Aix-Marseille Université, Facultés de médecine et de pharmacie, 27 Bd Jean Moulin, 13385 Marseille Cedex 05, France
| | - Bernard Davoust
- Unité de recherche sur les maladies infectieuses et tropicales émergentes (URMITE), CNRS UMR 7278 IRD 198 INSERM U1095 Aix-Marseille Université, Facultés de médecine et de pharmacie, 27 Bd Jean Moulin, 13385 Marseille Cedex 05, France; Groupe de travail en épidémiologie animale du service de santé des armées, BP95 83800 Toulon Cedex 9, France.
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18
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Martins G, Lilenbaum W. The panorama of animal leptospirosis in Rio de Janeiro, Brazil, regarding the seroepidemiology of the infection in tropical regions. BMC Vet Res 2013; 9:237. [PMID: 24289165 PMCID: PMC4220826 DOI: 10.1186/1746-6148-9-237] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Accepted: 11/25/2013] [Indexed: 11/10/2022] Open
Abstract
Background Leptospirosis is an important disease caused by various serovars of Leptospira sp. It can affect humans as well as domestic and wild animals; therefore, it has importance for public health, animal production, and wild species. The aim of this paper is to discuss the epidemiology of animal leptospirosis in Rio de Janeiro, Brazil, as a possible model for other tropical regions. In several studies conducted in the last 20 years, a total of 47 rats, 120 dogs, 875 cows, 695 horses, 1,343 goats, 308 sheep and 351 pigs from all regions of the state, in addition to 107 wild mammals and 73 golden-lion tamarins were tested (MAT) for anti-Leptospira antibodies. Results Seroreactivity was frequent in all studied species, confirming that the infection is endemic in Rio de Janeiro. Serogroups Icterohaemorrhagiae and Sejroe were the most prevalent in urban and rural scenarios, respectively. This paper reviews the current knowledge on animal leptospirosis in Rio de Janeiro and describes important differences between urban versus rural cycles of the infection in various species. Conclusion Identification of the prevailing serogroups and their reservoirs is essential for understanding agent-host-environment interactions under tropical conditions.
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Affiliation(s)
- Gabriel Martins
- Department of Microbiology and Parasitology, Laboratory of Veterinary Bacteriology, Universidade Federal Fluminense, Rio de Janeiro, Brazil.
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Goarant C, Bourhy P, D'Ortenzio E, Dartevelle S, Mauron C, Soupé-Gilbert ME, Bruyère-Ostells L, Gourinat AC, Picardeau M, Nato F, Chanteau S. Sensitivity and Specificity of a New Vertical Flow Rapid Diagnostic Test for the Serodiagnosis of Human Leptospirosis. PLoS Negl Trop Dis 2013; 7:e2289. [PMID: 23826401 PMCID: PMC3694835 DOI: 10.1371/journal.pntd.0002289] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2012] [Accepted: 04/11/2013] [Indexed: 01/25/2023] Open
Abstract
Background: Leptospirosis is a growing public health concern in many tropical and subtropical countries. However, its diagnosis is difficult because of non-specific symptoms and concurrent other endemic febrile diseases. In many regions, the laboratory diagnosis is not available due to a lack of preparedness and simple diagnostic assay or difficult access to reference laboratories. Yet, an early antibiotic treatment is decisive to the outcome. The need for Rapid Diagnostic Tests (RDTs) for bedside diagnosis of leptospirosis has been recognized. We developed a vertical flow immunochromatography strip RDT detecting anti-Leptospira human IgM and evaluated it in patients from New Caledonia, France, and French West Indies. Methodology/Principal Findings: Whole killed Leptospira fainei cells were used as antigen for the test line and purified human IgM as the control line. The mobile phase was made of gold particles conjugated with goat anti-human IgM. Standards for Reporting of Diagnostic Accuracy criteria were used to assess the performance of this RDT. The Microscopic Agglutination Test (MAT) was used as the gold standard with a cut-off titer of ≥400. The sensitivity was 89.8% and the specificity 93.7%. Positive and negative Likelihood Ratios of 14.18 and 0.108 respectively, and a Diagnostic Odds Ratio of 130.737 confirmed its usefulness. This RDT had satisfactory reproducibility, repeatability, thermal tolerance and shelf-life. The comparison with MAT evidenced the earliness of the RDT to detect seroconversion. When compared with other RDT, the Vertical Flow RDT developed displayed good diagnostic performances. The major burden of leptospirosis happens in low-income populations from tropical or subtropical regions. Because of nonspecific symptoms in human leptospirosis, the biological confirmation is needed to ascertain the disease. However, this biological diagnosis relies on sophisticated and time-consuming techniques that are most often hardly (if ever) available to clinicians in peripheral health centers. Yet, the outcome of leptospirosis in humans largely depends on an early antibiotic treatment. Taken together, these factors highlight the need of rapid simple diagnostic tests for leptospirosis that could be used directly on the bedside even in remote health centers. In this study, we developed and evaluated a prototype point of care strip test for the serological diagnosis of human leptospirosis in New Caledonia, mainland France, and the French West Indies. The sensitivity was 89.8% [95% CI, 84.7–93.4] and the specificity 93.7% [95% CI, 89.65–96.2]. This easy, early and portable diagnostic test will be evaluated in other epidemiological conditions and under field conditions.
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Affiliation(s)
- Cyrille Goarant
- Institut Pasteur de Nouvelle-Calédonie, Association Pasteur International Network, Nouméa, New Caledonia
- * E-mail:
| | - Pascale Bourhy
- Institut Pasteur, Biology of Spirochetes Unit, National Reference Center and WHO Collaborating Center for Leptospirosis, Paris, France
| | - Eric D'Ortenzio
- Institut Pasteur de Nouvelle-Calédonie, Association Pasteur International Network, Nouméa, New Caledonia
| | | | - Carine Mauron
- Institut Pasteur de Nouvelle-Calédonie, Association Pasteur International Network, Nouméa, New Caledonia
| | | | - Lilian Bruyère-Ostells
- Institut Pasteur de Nouvelle-Calédonie, Association Pasteur International Network, Nouméa, New Caledonia
| | - Ann-Claire Gourinat
- Institut Pasteur de Nouvelle-Calédonie, Association Pasteur International Network, Nouméa, New Caledonia
| | - Mathieu Picardeau
- Institut Pasteur, Biology of Spirochetes Unit, National Reference Center and WHO Collaborating Center for Leptospirosis, Paris, France
| | | | - Suzanne Chanteau
- Institut Pasteur de Nouvelle-Calédonie, Association Pasteur International Network, Nouméa, New Caledonia
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Bourhy P, Herrmann Storck C, Theodose R, Olive C, Nicolas M, Hochedez P, Lamaury I, Zinini F, Brémont S, Landier A, Cassadou S, Rosine J, Picardeau M. Serovar diversity of pathogenic Leptospira circulating in the French West Indies. PLoS Negl Trop Dis 2013; 7:e2114. [PMID: 23516654 PMCID: PMC3597474 DOI: 10.1371/journal.pntd.0002114] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Accepted: 01/30/2013] [Indexed: 12/04/2022] Open
Abstract
Background Leptospirosis is one of the most important neglected tropical bacterial diseases in Latin America and the Caribbean. However, very little is known about the circulating etiological agents of leptospirosis in this region. In this study, we describe the serological and molecular features of leptospires isolated from 104 leptospirosis patients in Guadeloupe (n = 85) and Martinique (n = 19) and six rats captured in Guadeloupe, between 2004 and 2012. Methods and Findings Strains were studied by serogrouping, PFGE, MLVA, and sequencing 16SrRNA and secY. DNA extracts from blood samples collected from 36 patients in Martinique were also used for molecular typing of leptospires via PCR. Phylogenetic analyses revealed thirteen different genotypes clustered into five main clades that corresponded to the species: L. interrogans, L. kirschneri, L. borgpetersenii, L. noguchi, and L. santarosai. We also identified L. kmetyi in at least two patients with acute leptospirosis. This is the first time, to our knowledge, that this species has been identified in humans. The most prevalent genotypes were associated with L. interrogans serovars Icterohaemorrhagiae and Copenhageni, L. kirschneri serovar Bogvere, and L. borgpetersenii serovar Arborea. We were unable to identify nine strains at the serovar level and comparison of genotyping results to the MLST database revealed new secY alleles. Conclusions The overall serovar distribution in the French West Indies was unique compared to the neighboring islands. Typing of leptospiral isolates also suggested the existence of previously undescribed serovars. Leptospirosis is an emerging zoonotic disease caused by infection with pathogenic strains of Leptospira. Isolation of Leptospira strains is rare, making it difficult to assess their distribution worldwide. In this study, we characterized cultures of Leptospira obtained from more than one hundred leptospirosis patients from the French West Indies by serology and various molecular typing methods to identify the strains circulating in this endemic region. Typing of leptospiral isolates showed that causative agents of leptospirosis in the French West Indies are mainly from the serogroups Icterohaemorrhagiae and Ballum, but we also identified new genotypes. We also found that the distribution of the predominant pathogenic leptospiral serovars differed between the Caribbean islands. A better understanding of the epidemiology of leptospirosis will improve our knowledge in the distribution of this emerging neglected tropical disease worldwide. The identification of the circulating etiological agents of leptospirosis in the French West Indies will also help establish appropriate control and prevention measures in this area where the disease is endemic.
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Affiliation(s)
- Pascale Bourhy
- Institut Pasteur, Unité de Biologie des Spirochètes, National Reference Center and WHO Collaborating Center for Leptospirosis, Paris, France
| | - Cécile Herrmann Storck
- University Hospital of Pointe à Pitre, Department of Bacteriology and Infectious and Tropical Diseases, Guadeloupe, French West Indies
| | - Rafaelle Theodose
- University Hospital of Fort de France, Department of Bacteriology and Infectious and Tropical Diseases, Martinique, French West Indies
| | - Claude Olive
- University Hospital of Fort de France, Department of Bacteriology and Infectious and Tropical Diseases, Martinique, French West Indies
| | - Muriel Nicolas
- University Hospital of Pointe à Pitre, Department of Bacteriology and Infectious and Tropical Diseases, Guadeloupe, French West Indies
| | - Patrick Hochedez
- University Hospital of Fort de France, Department of Bacteriology and Infectious and Tropical Diseases, Martinique, French West Indies
| | - Isabelle Lamaury
- University Hospital of Pointe à Pitre, Department of Bacteriology and Infectious and Tropical Diseases, Guadeloupe, French West Indies
| | - Farida Zinini
- Institut Pasteur, Unité de Biologie des Spirochètes, National Reference Center and WHO Collaborating Center for Leptospirosis, Paris, France
| | - Sylvie Brémont
- Institut Pasteur, Unité de Biologie des Spirochètes, National Reference Center and WHO Collaborating Center for Leptospirosis, Paris, France
| | - Annie Landier
- Institut Pasteur, Unité de Biologie des Spirochètes, National Reference Center and WHO Collaborating Center for Leptospirosis, Paris, France
| | - Sylvie Cassadou
- French Institute for Public Health Surveillance (InVS), Interregional epidemiology unit of French West Indies (Cire Antilles-Guyane), Fort-de-France, Martinique, French West Indies
| | - Jacques Rosine
- French Institute for Public Health Surveillance (InVS), Interregional epidemiology unit of French West Indies (Cire Antilles-Guyane), Fort-de-France, Martinique, French West Indies
| | - Mathieu Picardeau
- Institut Pasteur, Unité de Biologie des Spirochètes, National Reference Center and WHO Collaborating Center for Leptospirosis, Paris, France
- * E-mail:
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21
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Sport and infectious risk: A systematic review of the literature over 20 years. Med Mal Infect 2012; 42:533-44. [DOI: 10.1016/j.medmal.2012.10.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Revised: 08/19/2012] [Accepted: 10/01/2012] [Indexed: 11/22/2022]
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