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Mull N, Seifert SN, Forbes KM. A framework for understanding and predicting orthohantavirus functional traits. Trends Microbiol 2023; 31:1102-1110. [PMID: 37277284 DOI: 10.1016/j.tim.2023.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 05/12/2023] [Accepted: 05/15/2023] [Indexed: 06/07/2023]
Abstract
Orthohantaviruses present a global public health threat; there are 58 distinct viruses currently recognized and case fatality of pathogenic orthohantaviruses ranges from <0.1% to 50%. An Old World versus New World dichotomy is frequently applied to distinguish human diseases caused by orthohantaviruses. However, this geographic grouping masks the importance of phylogeny and virus-host ecology in shaping orthohantavirus traits, especially since related arvicoline rodents and their orthohantaviruses are found in both regions. We argue that orthohantaviruses can be separated into three phylogenetically based rodent host groups with differences in key functional traits, including human disease, transmission route, and virus-host fidelity. This framework can help understand and predict traits of under-studied and newly discovered orthohantaviruses and guide public health and biosafety policy.
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Affiliation(s)
- Nathaniel Mull
- Department of Biological Sciences, University of Arkansas, Fayetteville, AR, USA.
| | - Stephanie N Seifert
- Paul G. Allen School for Global Health, Washington State University, Pullman, WA, USA
| | - Kristian M Forbes
- Department of Biological Sciences, University of Arkansas, Fayetteville, AR, USA
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2
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Nnamani EI, Spruill-Harrell B, Williams EP, Taylor MK, Owen RD, Jonsson CB. Deep Sequencing to Reveal Phylo-Geographic Relationships of Juquitiba Virus in Paraguay. Viruses 2023; 15:1798. [PMID: 37766205 PMCID: PMC10537311 DOI: 10.3390/v15091798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 08/18/2023] [Accepted: 08/21/2023] [Indexed: 09/29/2023] Open
Abstract
Several hantaviruses result in zoonotic infections of significant public health concern, causing hemorrhagic fever with renal syndrome (HFRS) or hantavirus cardiopulmonary syndrome (HCPS) in the Old and New World, respectively. Given a 35% case fatality rate, disease-causing New World hantaviruses require a greater understanding of their biology, genetic diversity, and geographical distribution. Juquitiba hantaviruses have been identified in Oligoryzomys nigripes in Brazil, Paraguay, and Uruguay. Brazil has reported the most HCPS cases associated with this virus. We used a multiplexed, amplicon-based PCR strategy to screen and deep-sequence the virus harbored within lung tissues collected from Oligoryzomys species during rodent field collections in southern (Itapúa) and western (Boquerón) Paraguay. No Juquitiba-like hantaviruses were identified in Boquerón. Herein, we report the full-length S and M segments of the Juquitiba hantaviruses identified in Paraguay from O. nigripes. We also report the phylogenetic relationships of the Juquitiba hantaviruses in rodents collected from Itapúa with those previously collected in Canindeyú. We showed, using the TN93 nucleotide substitution model, the coalescent (constant-size) population tree model, and Bayesian inference implemented in the Bayesian evolutionary analysis by sampling trees (BEAST) framework, that the Juquitiba virus lineage in Itapúa is distinct from that in Canindeyú. Our spatiotemporal analysis showed significantly different time to the most recent ancestor (TMRA) estimates between the M and S segments, but a common geographic origin. Our estimates suggest the additional geographic diversity of the Juquitiba virus within the Interior Atlantic Forest and highlight the need for more extensive sampling across this biome.
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Affiliation(s)
- Evans Ifebuche Nnamani
- Department of Microbiology, Immunology, and Biochemistry, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (E.I.N.); (B.S.-H.); (E.P.W.); (M.K.T.)
| | - Briana Spruill-Harrell
- Department of Microbiology, Immunology, and Biochemistry, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (E.I.N.); (B.S.-H.); (E.P.W.); (M.K.T.)
| | - Evan Peter Williams
- Department of Microbiology, Immunology, and Biochemistry, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (E.I.N.); (B.S.-H.); (E.P.W.); (M.K.T.)
| | - Mariah K. Taylor
- Department of Microbiology, Immunology, and Biochemistry, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (E.I.N.); (B.S.-H.); (E.P.W.); (M.K.T.)
| | - Robert D. Owen
- Centro Para El Desarrollo de Investigación Científica, Asunción C.P. 1255, Paraguay;
| | - Colleen B. Jonsson
- Department of Microbiology, Immunology, and Biochemistry, College of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA; (E.I.N.); (B.S.-H.); (E.P.W.); (M.K.T.)
- Regional Biocontainment Laboratory, University of Tennessee Health Science Center, Memphis, TN 38163, USA
- Institute for the Study of Host-Pathogen Systems, University of Tennessee Health Science Center, Memphis, TN 38163, USA
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3
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Fernandes J, Coelho TA, Oliveira RCD, Guterres A, Vitral CL, Teixeira BR, Santos FDO, Oliveira JMD, Silva-Nunes MD, Horta MAP, Levis SC, Ferreira MU, Lemos ERSD. A Retrospective Survey of Rodent-borne Viruses in Rural Populations of Brazilian Amazon. Rev Soc Bras Med Trop 2020; 53:e20190511. [PMID: 32578703 PMCID: PMC7310363 DOI: 10.1590/0037-8682-0511-2019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 03/19/2020] [Indexed: 11/24/2022] Open
Abstract
INTRODUCTION: The Amazon tropical rainforest has the most dense and diverse ecosystem
worldwide. A few studies have addressed rodent-borne diseases as potential
hazards to humans in this region. METHODS: A retrospective survey was conducted using enzyme-linked immunosorbent assay
for detecting mammarenavirus and orthohantavirus antibodies in 206 samples
collected from rural settlers of the Brazilian Western Amazonian region.
RESULTS: Six (2.91%) individuals in the age group of 16 to 36 years were found to
possess antibodies against mammarenavirus. CONCLUSION: Evidence of previous exposure to mammarenavirus in the rural population
points to its silent circulation in this region.
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Affiliation(s)
- Jorlan Fernandes
- Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Hantaviroses e Rickettsioses, Rio de Janeiro, RJ, Brasil
| | - Thayssa Alves Coelho
- Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Hantaviroses e Rickettsioses, Rio de Janeiro, RJ, Brasil
| | - Renata Carvalho de Oliveira
- Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Hantaviroses e Rickettsioses, Rio de Janeiro, RJ, Brasil
| | - Alexandro Guterres
- Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Hantaviroses e Rickettsioses, Rio de Janeiro, RJ, Brasil
| | | | - Bernardo Rodrigues Teixeira
- Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Biologia e Parasitologia de Mamíferos Silvestres Reservatórios, Rio de Janeiro, RJ, Brasil
| | - Fernando de Oliveira Santos
- Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Biologia e Parasitologia de Mamíferos Silvestres Reservatórios, Rio de Janeiro, RJ, Brasil
| | - Jaqueline Mendes de Oliveira
- Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Desenvolvimento Tecnológico em Virologia, Rio de Janeiro, RJ, Brasil
| | | | | | - Silvana C Levis
- Instituto Nacional de Enfermedades Virales Humanas, Pergamino, Argentina
| | - Marcelo Urbano Ferreira
- Universidade de São Paulo, Instituto de Ciências Biomédicas, Departmento de Parasitologia, São Paulo, SP, Brasil
| | - Elba Regina Sampaio de Lemos
- Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Hantaviroses e Rickettsioses, Rio de Janeiro, RJ, Brasil
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Amaral CD, Costa GB, de Souza WM, Alves PA, Borges IA, Tolardo AL, Romeiro MF, Drumond BP, Abrahão JS, Kroon EG, Paglia AP, Figueiredo LTM, de Souza Trindade G. Silent Orthohantavirus Circulation Among Humans and Small Mammals from Central Minas Gerais, Brazil. ECOHEALTH 2018; 15:577-589. [PMID: 30105563 DOI: 10.1007/s10393-018-1353-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 05/17/2018] [Accepted: 06/16/2018] [Indexed: 06/08/2023]
Abstract
New World orthohantaviruses are emerging RNA viruses that cause hantavirus cardiopulmonary syndrome (HCPS). These viruses are a burden to public health around the world with a lethality rate of around 60%. In South America, rodents of Sigmodontinae subfamily are the main reservoirs of orthohantaviruses. We described a serosurvey for orthohantaviruses circulation in an apparently healthy human population and small mammals from rural areas in Central Minas Gerais State, Brazil. A total of 240 individuals and 50 small mammals (26 rodents belonging to 10 different species and 24 marsupials from 4 different species) were sampled during 2012-2013. The seroprevalence rates of IgG/IgM antibodies in humans were 7.1 and 1.6%, respectively. Only one rodent, an Oligoryzomys nigripes captured in peridomestic area, tested positive for IgG antibodies and viral RNA. Our findings suggest a silent circulation of orthohantaviruses in a region of intensive agriculture production. The detection of seropositive humans in an area with a lack of previous HCPS reports highlights potential oligosymptomatic cases and the need for surveillance strategies that could reduce the risk of future outbreaks.
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Affiliation(s)
- Carolina Dourado Amaral
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Presidente Antônio Carlos, 6627 - Campus Pampulha, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Galileu Barbosa Costa
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Presidente Antônio Carlos, 6627 - Campus Pampulha, Belo Horizonte, Minas Gerais, 31270-901, Brazil.
| | - William Marciel de Souza
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil
| | - Pedro Augusto Alves
- Laboratório de Imunologia das Doenças Virais, Instituto René Rachou, Fiocruz, Minas Gerais, Brazil
| | - Iara Apolinário Borges
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Presidente Antônio Carlos, 6627 - Campus Pampulha, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Aline Lavado Tolardo
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil
| | - Marília Farignoli Romeiro
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil
| | - Betânia Paiva Drumond
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Presidente Antônio Carlos, 6627 - Campus Pampulha, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Jônatas Santos Abrahão
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Presidente Antônio Carlos, 6627 - Campus Pampulha, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Erna Geessien Kroon
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Presidente Antônio Carlos, 6627 - Campus Pampulha, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Adriano Pereira Paglia
- Laboratório de Ecologia e Conservação, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Luiz Tadeu Moraes Figueiredo
- Centro de Pesquisa em Virologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil
| | - Giliane de Souza Trindade
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Avenida Presidente Antônio Carlos, 6627 - Campus Pampulha, Belo Horizonte, Minas Gerais, 31270-901, Brazil.
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Moreira J, Bressan CS, Brasil P, Siqueira AM. Epidemiology of acute febrile illness in Latin America. Clin Microbiol Infect 2018; 24:827-835. [PMID: 29777926 PMCID: PMC7172187 DOI: 10.1016/j.cmi.2018.05.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 05/01/2018] [Accepted: 05/03/2018] [Indexed: 12/11/2022]
Abstract
Background The causes of acute febrile illness (AFI) in Latin America are diverse and their complexity increases as the proportion of fever due to malaria decreases, as malaria control measures and new pathogens emerge in the region. In this context, it is important to shed light on the gaps in the epidemiological characteristics and the geographic range for many AFI aetiologies. Objectives To review studies on community-acquired fever aetiology other than malaria in Latin America, and to highlight knowledge gaps and challenges needing further investigation. Sources PubMed from 2012 to April 2018. Content We found 17 eligible studies describing 13 539 patients. The median number of pathogens tested per individual was 3.5 (range 2–17). A causative pathogen could be determined for 6661 (49.2%) individuals. The most frequently reported pathogen during the study periods was dengue virus (DENV) (14 studies), followed by chikungunya virus (nine studies) and Zika virus (seven studies). Among the studies reporting concurrent infections, 296 individuals (2.2%) were found to have co-infections. In-hospital mortality was reported in eight (47%) studies, ranging between 0% and 18%. Implications DENV fever is the febrile illness most frequently reported, reflecting its importance, while chikungunya and zika viruses present increasing trends since their emergence in the region. Studies with systematic and harmonized approaches for detection of multiple pathogens are needed and would probably reveal a higher burden of neglected pathogens such as Rickettsia spp. and arenaviruses. The lack of point-of-care tests and harmonized approach limits the care provided by health professionals and the efficacy of surveillance for AFI in the region.
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Affiliation(s)
- J Moreira
- Instituto Nacional de Infectologia Evandro Chagas, Fundacao Oswaldo Cruz, Rio de Janeiro, Brazil; Programa de Pós-Graduação em Pesquisa Clínica, Fundacao Oswaldo Cruz, Rio de Janeiro, Brazil
| | - C S Bressan
- Instituto Nacional de Infectologia Evandro Chagas, Fundacao Oswaldo Cruz, Rio de Janeiro, Brazil; Programa de Pós-Graduação em Pesquisa Clínica, Fundacao Oswaldo Cruz, Rio de Janeiro, Brazil
| | - P Brasil
- Instituto Nacional de Infectologia Evandro Chagas, Fundacao Oswaldo Cruz, Rio de Janeiro, Brazil; Programa de Pós-Graduação em Pesquisa Clínica, Fundacao Oswaldo Cruz, Rio de Janeiro, Brazil
| | - A M Siqueira
- Instituto Nacional de Infectologia Evandro Chagas, Fundacao Oswaldo Cruz, Rio de Janeiro, Brazil; Programa de Pós-Graduação em Pesquisa Clínica, Fundacao Oswaldo Cruz, Rio de Janeiro, Brazil.
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García M, Iglesias A, Landoni VI, Bellomo C, Bruno A, Córdoba MT, Balboa L, Fernández GC, Sasiain MDC, Martínez VP, Schierloh P. Massive plasmablast response elicited in the acute phase of hantavirus pulmonary syndrome. Immunology 2017; 151:122-135. [PMID: 28106253 DOI: 10.1111/imm.12713] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 12/22/2016] [Accepted: 01/11/2017] [Indexed: 12/26/2022] Open
Abstract
Beside its key diagnostic value, the humoral immune response is thought to play a protective role in hantavirus pulmonary syndrome. However, little is known about the cell source of these antibodies during ongoing human infection. Herein we characterized B-cell subsets circulating in Andes-virus-infected patients. A notable potent plasmablast (PB) response that increased 100-fold over the baseline levels was observed around 1 week after the onset of symptoms. These PB present a CD3neg CD19low CD20neg CD38hi CD27hi CD138+/- IgA+/- surface phenotype together with the presence of cytoplasmic functional immunoglobulins. They are large lymphocytes (lymphoblasts) morphologically coincident with the 'immunoblast-like' cells that have been previously described during blood cytology examinations of hantavirus-infected patients. Immunoreactivity analysis of white blood cell lysates suggests that some circulating PB are virus-specific but we also observed a significant increase of reactivity against virus-unrelated antigens, which suggests a possible bystander effect by polyclonal B-cell activation. The presence of this large and transient PB response raises the question as to whether these cells might have a protective or pathological role during the ongoing hantavirus pulmonary syndrome and suggest their practical application as a diagnostic/prognostic biomarker.
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Affiliation(s)
- Marina García
- Laboratorio de Inmunología de Enfermedades Respiratorias, Instituto de Medicina Experimental (IMEX)-CONICET-Academia Nacional de Medicina (ANM), Ciudad autónoma de Buenos Aires, Argentina
| | - Ayelén Iglesias
- Laboratorio Nacional de Referencia para Hantavirus, Servicio de Biología Molecular, Instituto Nacional de Enfermedades Infecciosas, ANLIS -'Dr. Carlos G. Malbrán', Ciudad autónoma de Buenos Aires, Argentina
| | - Verónica I Landoni
- Laboratorio de Fisiología de procesos Inflamatorios, IMEX-CONICET-ANM, Ciudad autónoma de Buenos Aires, Argentina
| | - Carla Bellomo
- Laboratorio Nacional de Referencia para Hantavirus, Servicio de Biología Molecular, Instituto Nacional de Enfermedades Infecciosas, ANLIS -'Dr. Carlos G. Malbrán', Ciudad autónoma de Buenos Aires, Argentina
| | - Agostina Bruno
- Laboratorio de Enfermedades Tropicales, Hospital San Vicente de Paúl, Orán, Salta, Argentina
| | - María Teresa Córdoba
- Laboratorio de Enfermedades Tropicales, Hospital San Vicente de Paúl, Orán, Salta, Argentina
| | - Luciana Balboa
- Laboratorio de Inmunología de Enfermedades Respiratorias, Instituto de Medicina Experimental (IMEX)-CONICET-Academia Nacional de Medicina (ANM), Ciudad autónoma de Buenos Aires, Argentina
| | - Gabriela C Fernández
- Laboratorio de Fisiología de procesos Inflamatorios, IMEX-CONICET-ANM, Ciudad autónoma de Buenos Aires, Argentina
| | - María Del Carmen Sasiain
- Laboratorio de Inmunología de Enfermedades Respiratorias, Instituto de Medicina Experimental (IMEX)-CONICET-Academia Nacional de Medicina (ANM), Ciudad autónoma de Buenos Aires, Argentina
| | - Valeria P Martínez
- Laboratorio Nacional de Referencia para Hantavirus, Servicio de Biología Molecular, Instituto Nacional de Enfermedades Infecciosas, ANLIS -'Dr. Carlos G. Malbrán', Ciudad autónoma de Buenos Aires, Argentina
| | - Pablo Schierloh
- Laboratorio de Inmunología de Enfermedades Respiratorias, Instituto de Medicina Experimental (IMEX)-CONICET-Academia Nacional de Medicina (ANM), Ciudad autónoma de Buenos Aires, Argentina
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Serological evidence of hantavirus infection in apparently healthy people from rural and slum communities in southern Chile. Viruses 2015; 7:2006-13. [PMID: 25912713 PMCID: PMC4411687 DOI: 10.3390/v7042006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 04/07/2015] [Accepted: 04/13/2015] [Indexed: 12/23/2022] Open
Abstract
Hantavirus disease in America has been recognizable because of its rapid progression in clinical cases, occurrence in previously healthy young adults, and high case fatality rate. Hantavirus disease has been proposed now to define the diversity of clinical manifestations. Since 1995, a total of 902 cases of hantavirus pulmonary syndrome have been reported in Chile, caused by Andes virus (ANDV), with overall fatality of 32%. This report describes the sero-epidemiology of hantavirus in apparently healthy people in rural and urban slum communities from southern Chile. Ten of 934 samples yielded a positive result resulting in a seroprevalence of 1.07% (95% confidence intervals: 0.05%–2.0%). A higher proportion of positive samples was found among individuals from rural villages (1.3%) and slums (1.5%) compared with farms (0.5%). Seropositivity was associated with age (p = 0.011), low education level (p = 0.006) and occupations linked to the household (homemaker, retired, or student) (p = 0.016). No evidence of infection was found in 38 sigmodontinae rodents trapped in the peri-domestic environment. Our findings highlight that exposure risk was associated with less documented risk factors, such as women in slum and rural villages, and the occurrence of infection that may have presented as flu-like illness that did not require medical attention or was misdiagnosed.
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Razuri H, Tokarz R, Ghersi BM, Salmon-Mulanovich G, Guezala MC, Albujar C, Mendoza AP, Tinoco YO, Cruz C, Silva M, Vasquez A, Pacheco V, Ströher U, Guerrero LW, Cannon D, Nichol ST, Hirschberg DL, Lipkin WI, Bausch DG, Montgomery JM. Andes hantavirus variant in rodents, southern Amazon Basin, Peru. Emerg Infect Dis 2014; 20:257-60. [PMID: 24447689 PMCID: PMC3901500 DOI: 10.3201/eid2002.131418] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
We investigated hantaviruses in rodents in the southern Amazon Basin of Peru and identified an Andes virus variant from Neacomys spinosus mice. This finding extends the known range of this virus in South America and the range of recognized hantaviruses in Peru. Further studies of the epizoology of hantaviruses in this region are warranted.
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Figueiredo LTM, Souza WMD, Ferrés M, Enria DA. Hantaviruses and cardiopulmonary syndrome in South America. Virus Res 2014; 187:43-54. [DOI: 10.1016/j.virusres.2014.01.015] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 01/15/2014] [Indexed: 12/12/2022]
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Montoya-Ruiz C, Diaz FJ, Rodas JD. Recent evidence of hantavirus circulation in the American tropic. Viruses 2014; 6:1274-93. [PMID: 24638203 PMCID: PMC3970150 DOI: 10.3390/v6031274] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Revised: 02/14/2014] [Accepted: 02/24/2014] [Indexed: 12/15/2022] Open
Abstract
Hantaan virus was discovered in Korea during the 1970s while other similar viruses were later reported in Asia and Europe. There was no information about hantavirus human infection in the Americas until 1993 when an outbreak was described in the United States. This event promoted new studies to find hantaviruses in the Americas. At first, many studies were conducted in Brazil, Argentina, Chile, Uruguay and Paraguay, while other Latin American countries began to report the presence of these agents towards the end of the 20th century. More than 30 hantaviruses have been reported in the Western Hemisphere with more frequent cases registered in the southern cone (Argentina, Chile, Uruguay, Paraguay, Bolivia and Brazil). However there was an important outbreak in 2000 in Panama and some rare events have been described in Peru, Venezuela and French Guiana. Since hantaviruses have only recently emerged as a potential threat in the tropical zones of the Americas, this review compiles recent hantavirus reports in Central America, the Caribbean islands and the northern region of South America. These studies have generated the discovery of new hantaviruses and could help to anticipate the presentation of possible future outbreaks in the region.
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Affiliation(s)
- Carolina Montoya-Ruiz
- Grupo Centauro, Universidad de Antioquia, Cll 70 No. 52-21, SIU 233, Medellín, Antioquia 050010, Colombia.
| | - Francisco J Diaz
- Grupo Inmunovirologia, Universidad de Antioquia, Cll 70 No. 52-21, SIU 532, Medellín, Antioquia 050010, Colombia.
| | - Juan D Rodas
- Grupo Centauro, Universidad de Antioquia, Cll 70 No. 52-21, SIU 233, Medellín, Antioquia 050010, Colombia.
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Watson DC, Sargianou M, Papa A, Chra P, Starakis I, Panos G. Epidemiology of Hantavirus infections in humans: a comprehensive, global overview. Crit Rev Microbiol 2013; 40:261-72. [PMID: 23607444 DOI: 10.3109/1040841x.2013.783555] [Citation(s) in RCA: 112] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Hantaviruses comprise an emerging global threat for public health, affecting about 30,000 humans annually. Infection may lead to Hantavirus pulmonary syndrome (HPS) in the Americas and hemorrhagic fever with renal syndrome (HFRS) in the Europe and Asia. Humans are spillover hosts, acquiring infection primarily through the inhalation of aerosolized excreta from infected rodents and insectivores. Risk factors for infection include involvement in outdoor activities, such as rural- and forest-related activities, peridomestic rodent presence, exposure to potentially infected dust and outdoor military training; prolonged, intimate contact with infected individuals promotes transmission of Andes virus, the only Hantavirus known to be transmitted from human-to-human. The total number of Hantavirus case reports is generally on the rise, as is the number of affected countries. Knowledge of the geographical distribution, regional incidence and associated risk factors of the disease are crucial for clinicians to suspect and diagnose infected individuals early on. Climatic, ecological and environmental changes are related to fluctuations in rodent populations, and subsequently to human epidemics. Thus, prevention may be enhanced by host-reservoir control and human exposure prophylaxis interventions, which likely have led to a dramatic reduction of human cases in China over the past decades; vaccination may also play a role in the future.
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Affiliation(s)
- Dionysios Christos Watson
- Division of Infectious Diseases, Department of Internal Medicine, Patras University General Hospital , Patras , Greece
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12
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Abstract
Hantaviruses are important contributors to disease burden in the New World, yet many aspects of their distribution and dynamics remain uncharacterized. To examine the patterns and processes that influence the diversity and geographic distribution of hantaviruses in South America, we performed genetic and phylogeographic analyses of all available South American hantavirus sequences. We sequenced multiple novel and previously described viruses (Anajatuba, Laguna Negra-like, two genotypes of Castelo dos Sonhos, and two genotypes of Rio Mamore) from Brazilian Oligoryzomys rodents and hantavirus pulmonary syndrome cases and identified a previously uncharacterized species of Oligoryzomys associated with a new genotype of Rio Mamore virus. Our analysis indicates that the majority of South American hantaviruses fall into three phylogenetic clades, corresponding to Andes and Andes-like viruses, Laguna Negra and Laguna Negra-like viruses, and Rio Mamore and Rio Mamore-like viruses. In addition, the dynamics and distribution of these viruses appear to be shaped by both the geographic proximity and phylogenetic relatedness of their rodent hosts. The current system of nomenclature used in the hantavirus community is a significant impediment to understanding the ecology and evolutionary history of hantaviruses; here, we suggest strict adherence to a modified taxonomic system, with species and strain designations resembling the numerical system of the enterovirus genus.
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