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da Rocha MM, Codeço CT, da Silva CMFP. Spatiotemporal Evolution of the Yellow Fever Epidemic in Southeast Brazil from 2016 to 2019. Vector Borne Zoonotic Dis 2024. [PMID: 38813663 DOI: 10.1089/vbz.2024.0004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2024] Open
Abstract
Background: Yellow fever (YF) is a zoonotic disease transmitted by mosquitoes among humans and nonhuman primates. Although urban YF is eradicated, the sylvatic YF has reemerged in some areas of Brazil in the twenty-first century. From 2016 to 2019, a sylvatic YF epidemic occurred in Southeast Brazil, where it had been eradicated in the 1940s. Methods: This study's objective was to describe the epidemic in the states of the Southeast region, based on descriptive, cluster, and mobility analyses. Results: Both the descriptive and cluster analyses showed that the YF cases spread from the state of Minas Gerais southward, causing peaks in cases during the summer months. None of the state capitals was included in the clusters, but the connectivity between the municipalities in Greater Metropolitan São Paulo highlighted potential paths of spread. Despite differences in sociodemographic profiles between the Southeast and North of Brazil (the latter region considered endemic), the epidemiological profile was similar, except for patients' occupation, which was not related to rural work in the Southeast. Conclusion: The results contributed to our understanding of the paths by which YF spread across Southeast Brazil and the epidemiological profile in an area that had gone decades without autochthonous cases.
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Salas-Rojas M, de Oliveira-Filho EF, Almazán-Marín C, Rodas-Martínez AZ, Aguilar-Setién Á, Drexler JF. Serological evidence for potential yellow fever virus infection in non-human primates, southeastern Mexico. ONE HEALTH OUTLOOK 2023; 5:14. [PMID: 37876014 PMCID: PMC10594671 DOI: 10.1186/s42522-023-00090-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 10/09/2023] [Indexed: 10/26/2023]
Abstract
BACKGROUND Arthropod-borne flaviviruses like dengue virus (DENV) and yellow fever virus (YFV) are major human pathogens. In Latin America, YFV is maintained in sylvatic cycles involving non-human primates (NHP) and forest-dwelling mosquitos. YFV supposedly does not circulate north of Panama. METHODS We conducted a serologic study for flaviviruses and other emerging viruses in NHP from southeastern Mexico. A total of thirty sera of black-handed spider monkeys (Ateles geoffroyi, n = 25), black howler monkeys (Alouatta pigra, n = 3), and mantled howler monkeys (Al. palliata, n = 2) sampled in 2012 and 2018 were screened by an indirect immunofluorescence assay (IFA) to detected IgG antibodies against DENV, YFV, Zika virus (ZIKV), West Nile virus (WNV), Rift Valley fever virus, Crimean-Congo hemorrhagic fever virus, Middle East respiratory syndrome coronavirus, and Zaire Ebola virus, and confirmed by plaque reduction neutralization tests (PRNT90) representing all mosquito-borne flavivirus serocomplexes circulating in the Americas. RESULTS A total of 16 sera (53.3%; 95% CI, 34.3-71.7) showed IFA reactivity to at least one tested flavivirus with end-point titers ranging from 1:100 to 1:1000. No serum reacted with other viruses. Monotypic and high mean PRNT90 endpoint YFV titers of 1:246 were found in 3 black-handed spider monkey sera (10.0%; 95% CI, 2.1-26.5) sampled in 2018 in Tabasco, compared to all other flaviviruses tested. Monotypic endpoint PRNT90 titers of 1:28 for Ilheus virus and 1:22 for WNV in serum of black howler monkeys sampled in 2018 in Tabasco suggested additional flavivirus exposure. CONCLUSIONS Our findings may suggest unnoticed YFV circulation. Intensification of YFV surveillance in NHP and vectors is warranted in Mexico and potentially other areas considered free of yellow fever.
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Affiliation(s)
- Mónica Salas-Rojas
- UIM en Inmunología, UMAE Hospital de Pediatría, Centro Médico Nacional "Siglo XXI", Instituto Mexicano del Seguro Social, Ciudad de Mexico, México
| | - Edmilson Ferreira de Oliveira-Filho
- Institute of Virology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität Zu Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Cenia Almazán-Marín
- UIM en Inmunología, UMAE Hospital de Pediatría, Centro Médico Nacional "Siglo XXI", Instituto Mexicano del Seguro Social, Ciudad de Mexico, México
| | - Alba Zulema Rodas-Martínez
- División Académica de Ciencias Biológicas, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tabasco, México
| | - Álvaro Aguilar-Setién
- UIM en Inmunología, UMAE Hospital de Pediatría, Centro Médico Nacional "Siglo XXI", Instituto Mexicano del Seguro Social, Ciudad de Mexico, México
| | - Jan Felix Drexler
- Institute of Virology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität Zu Berlin, Charitéplatz 1, 10117, Berlin, Germany.
- German Centre for Infection Research (DZIF), Associated Partner Site Charité, Berlin, Germany.
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Servadio JL, Convertino M, Fiecas M, Muñoz‐Zanzi C. Weekly Forecasting of Yellow Fever Occurrence and Incidence via Eco-Meteorological Dynamics. GEOHEALTH 2023; 7:e2023GH000870. [PMID: 37885914 PMCID: PMC10599710 DOI: 10.1029/2023gh000870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 08/31/2023] [Accepted: 10/11/2023] [Indexed: 10/28/2023]
Abstract
Yellow Fever (YF), a mosquito-borne disease, requires ongoing surveillance and prevention due to its persistence and ability to cause major epidemics, including one that began in Brazil in 2016. Forecasting based on factors influencing YF risk can improve efficiency in prevention. This study aimed to produce weekly forecasts of YF occurrence and incidence in Brazil using weekly meteorological and ecohydrological conditions. Occurrence was forecast as the probability of observing any cases, and incidence was forecast to represent morbidity if YF occurs. We fit gamma hurdle models, selecting predictors from several meteorological and ecohydrological factors, based on forecast accuracy defined by receiver operator characteristic curves and mean absolute error. We fit separate models for data before and after the start of the 2016 outbreak, forecasting occurrence and incidence for all municipalities of Brazil weekly. Different predictor sets were found to produce most accurate forecasts in each time period, and forecast accuracy was high for both time periods. Temperature, precipitation, and previous YF burden were most influential predictors among models. Minimum, maximum, mean, and range of weekly temperature, precipitation, and humidity contributed to forecasts, with optimal lag times of 2, 6, and 7 weeks depending on time period. Results from this study show the use of environmental predictors in providing regular forecasts of YF burden and producing nationwide forecasts. Weekly forecasts, which can be produced using the forecast model developed in this study, are beneficial for informing immediate preparedness measures.
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Affiliation(s)
- Joseph L. Servadio
- Department of BiologyCenter for Infectious Disease DynamicsPennsylvania State UniversityUniversity ParkPAUSA
- Division of Environmental Health SciencesSchool of Public HealthUniversity of MinnesotaMinneapolisMNUSA
| | | | - Mark Fiecas
- Division of BiostatisticsSchool of Public HealthUniversity of MinnesotaMinneapolisMNUSA
| | - Claudia Muñoz‐Zanzi
- Division of Environmental Health SciencesSchool of Public HealthUniversity of MinnesotaMinneapolisMNUSA
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Lücke AC, vom Hemdt A, Wieseler J, Fischer C, Feldmann M, Rothenfusser S, Drexler JF, Kümmerer BM. High-Throughput Platform for Detection of Neutralizing Antibodies Using Flavivirus Reporter Replicon Particles. Viruses 2022; 14:v14020346. [PMID: 35215941 PMCID: PMC8880525 DOI: 10.3390/v14020346] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 02/01/2022] [Accepted: 02/03/2022] [Indexed: 11/16/2022] Open
Abstract
Flavivirus outbreaks require fast and reliable diagnostics that can be easily adapted to newly emerging and re-emerging flaviviruses. Due to the serological cross-reactivity among flavivirus antibodies, neutralization tests (NT) are considered the gold standard for sero-diagnostics. Here, we first established wild-type single-round infectious virus replicon particles (VRPs) by packaging a yellow fever virus (YFV) replicon expressing Gaussia luciferase (Gluc) with YFV structural proteins in trans using a double subgenomic Sindbis virus (SINV) replicon. The latter expressed the YFV envelope proteins prME via the first SINV subgenomic promoter and the capsid protein via a second subgenomic SINV promoter. VRPs were produced upon co-electroporation of replicon and packaging RNA. Introduction of single restriction enzyme sites in the packaging construct flanking the prME sequence easily allowed to exchange the prME moiety resulting in chimeric VRPs that have the surface proteins of other flaviviruses including dengue virus 1-4, Zika virus, West Nile virus, and tick-borne encephalitis virus. Besides comparing the YF-VRP based NT assay to a YF reporter virus NT assay, we analyzed the neutralization efficiencies of different human anti-flavivirus sera or a monoclonal antibody against all established VRPs. The assays were performed in a 96-well high-throughput format setting with Gluc as readout in comparison to classical plaque reduction NTs indicating that the VRP-based NT assays are suitable for high-throughput analyses of neutralizing flavivirus antibodies.
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Affiliation(s)
- Arlen-Celina Lücke
- Institute of Virology, Medical Faculty, University of Bonn, 53127 Bonn, Germany; (A.-C.L.); (A.v.H.); (J.W.); (M.F.)
| | - Anja vom Hemdt
- Institute of Virology, Medical Faculty, University of Bonn, 53127 Bonn, Germany; (A.-C.L.); (A.v.H.); (J.W.); (M.F.)
| | - Janett Wieseler
- Institute of Virology, Medical Faculty, University of Bonn, 53127 Bonn, Germany; (A.-C.L.); (A.v.H.); (J.W.); (M.F.)
| | - Carlo Fischer
- Institute of Virology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universtät Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany; (C.F.); (J.F.D.)
| | - Marie Feldmann
- Institute of Virology, Medical Faculty, University of Bonn, 53127 Bonn, Germany; (A.-C.L.); (A.v.H.); (J.W.); (M.F.)
| | - Simon Rothenfusser
- Division of Clinical Pharmacology, University Hospital, LMU Munich, 80337 Munich, Germany;
- Unit Clinical Pharmacology (EKliP), Helmholtz Center for Environmental Health, 80337 Munich, Germany
| | - Jan Felix Drexler
- Institute of Virology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universtät Berlin and Humboldt-Universität zu Berlin, 10117 Berlin, Germany; (C.F.); (J.F.D.)
- Martinovsky Institute of Medical Parasitology, Tropical and Vector-Borne Diseases, Sechenov University, 119435 Moskow, Russia
- German Center for Infection Research (DZIF), Associated Partner Site Berlin, 10117 Berlin, Germany
| | - Beate Mareike Kümmerer
- Institute of Virology, Medical Faculty, University of Bonn, 53127 Bonn, Germany; (A.-C.L.); (A.v.H.); (J.W.); (M.F.)
- German Center for Infection Research (DZIF), Associated Partner Site Bonn-Cologne, 53127 Bonn, Germany
- Correspondence:
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Rosser JI, Nielsen-Saines K, Saad E, Fuller T. Reemergence of yellow fever virus in southeastern Brazil, 2017-2018: What sparked the spread? PLoS Negl Trop Dis 2022; 16:e0010133. [PMID: 35130278 PMCID: PMC8853510 DOI: 10.1371/journal.pntd.0010133] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 02/17/2022] [Accepted: 01/04/2022] [Indexed: 12/02/2022] Open
Abstract
Background The 2017–2018 yellow fever virus (YFV) outbreak in southeastern Brazil marked a reemergence of YFV in urban states that had been YFV-free for nearly a century. Unlike earlier urban YFV transmission, this epidemic was driven by forest mosquitoes. The objective of this study was to evaluate environmental drivers of this outbreak. Methodology/Principal findings Using surveillance data from the Brazilian Ministry of Health on human and non-human primate (NHP) cases of YFV, we traced the spatiotemporal progression of the outbreak. We then assessed the epidemic timing in relation to drought using a monthly Standardized Precipitation Evapotranspiration Index (SPEI) and evaluated demographic risk factors for rural or outdoor exposure amongst YFV cases. Finally, we developed a mechanistic framework to map the relationship between drought and YFV. Both human and NHP cases were first identified in a hot, dry, rural area in northern Minas Gerais before spreading southeast into the more cool, wet urban states. Outbreaks coincided with drought in all four southeastern states of Brazil and an extreme drought in Minas Gerais. Confirmed YFV cases had an increased odds of being male (OR 2.6; 95% CI 2.2–3.0), working age (OR: 1.8; 95% CI: 1.5–2.1), and reporting any recent travel (OR: 2.8; 95% CI: 2.3–3.3). Based on this data as well as mosquito and non-human primate biology, we created the “Mono-DrY” mechanistic framework showing how an unusual drought in this region could have amplified YFV transmission at the rural-urban interface and sparked the spread of this epidemic. Conclusions/Significance The 2017–2018 YFV epidemic in Brazil originated in hot, dry rural areas of Minas Gerais before expanding south into urban centers. An unusually severe drought in this region may have created environmental pressures that sparked the reemergence of YFV in Brazil’s southeastern cities. In 2017–2018, cities in southeastern Brazil experienced an unusual outbreak of yellow fever virus. In the early 20th century, these cities had large outbreaks of yellow fever, spread by Aedes mosquitoes. But until this recent outbreak, they had been free of yellow fever for nearly a century. While this outbreak was spread by Haemagogus forest mosquitoes, the reemergence of yellow fever in densely populated urban areas raises serious concerns about it reestablishing ongoing transmission in cities, spread by urban Aedes mosquitoes. Our study sought to understand how and why yellow fever virus remerged in this area. We traced the outbreak, finding that it started in hot, dry, rural areas and spread south into cool, wet urban areas. The epidemic coincided with a severe drought, particularly in Minas Gerais where the epidemic started. Individuals with outdoor or rural risk factors were at highest risk, especially when the epidemic started. Therefore, this severe drought may have promoted the spread of yellow fever at rural-urban boundaries. To further explore this idea, we developed a unique framework based on forest mosquito and Howler monkey biology. Our framework, “Mono-DrY,” shows how severe drought could have increased mosquito and monkey densities, promoting the spread of yellow fever.
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Affiliation(s)
- Joelle I. Rosser
- Stanford University School of Medicine, Stanford, California, United States of America
- * E-mail:
| | - Karin Nielsen-Saines
- David Geffen UCLA School of Medicine, Los Angeles, California, United States of America
| | - Eduardo Saad
- New York City Department of Health and Mental Hygiene, New York City, New York, United States of America
| | - Trevon Fuller
- University of California, Institute of the Environment and Sustainability, Los Angeles, California, United States of America
- Fundação Oswaldo Cruz, Rio de Janeiro, Brazil
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Malukiewicz J, Boere V, de Oliveira MAB, D'arc M, Ferreira JVA, French J, Housman G, de Souza CI, Jerusalinsky L, R de Melo F, M Valença-Montenegro M, Moreira SB, de Oliveira E Silva I, Pacheco FS, Rogers J, Pissinatti A, Del Rosario RCH, Ross C, Ruiz-Miranda CR, Pereira LCM, Schiel N, de Fátima Rodrigues da Silva F, Souto A, Šlipogor V, Tardif S. An Introduction to the Callithrix Genus and Overview of Recent Advances in Marmoset Research. ILAR J 2021; 61:110-138. [PMID: 34933341 DOI: 10.1093/ilar/ilab027] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 02/12/2021] [Accepted: 06/23/2021] [Indexed: 12/12/2022] Open
Abstract
We provide here a current overview of marmoset (Callithrix) evolution, hybridization, species biology, basic/biomedical research, and conservation initiatives. Composed of 2 subgroups, the aurita group (C aurita and C flaviceps) and the jacchus group (C geoffroyi, C jacchus, C kuhlii, and C penicillata), this relatively young primate radiation is endemic to the Brazilian Cerrado, Caatinga, and Atlantic Forest biomes. Significant impacts on Callithrix within these biomes resulting from anthropogenic activity include (1) population declines, particularly for the aurita group; (2) widespread geographic displacement, biological invasions, and range expansions of C jacchus and C penicillata; (3) anthropogenic hybridization; and (4) epizootic Yellow Fever and Zika viral outbreaks. A number of Brazilian legal and conservation initiatives are now in place to protect the threatened aurita group and increase research about them. Due to their small size and rapid life history, marmosets are prized biomedical models. As a result, there are increasingly sophisticated genomic Callithrix resources available and burgeoning marmoset functional, immuno-, and epigenomic research. In both the laboratory and the wild, marmosets have given us insight into cognition, social group dynamics, human disease, and pregnancy. Callithrix jacchus and C penicillata are emerging neotropical primate models for arbovirus disease, including Dengue and Zika. Wild marmoset populations are helping us understand sylvatic transmission and human spillover of Zika and Yellow Fever viruses. All of these factors are positioning marmosets as preeminent models to facilitate understanding of facets of evolution, hybridization, conservation, human disease, and emerging infectious diseases.
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Affiliation(s)
- Joanna Malukiewicz
- Primate Genetics Laboratory, German Primate Centre, Leibniz Institute for Primate Research, Goettingen, Germany
| | - Vanner Boere
- Institute of Humanities, Arts, and Sciences, Federal University of Southern Bahia, Itabuna, Bahia, Brazil
| | | | - Mirela D'arc
- Department of Genetics, Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Jéssica V A Ferreira
- Centro de Conservação e Manejo de Fauna da Caatinga, UNIVASF, Petrolina, Pernambuco, Brazil
| | - Jeffrey French
- Department of Psychology, University of Nebraska Omaha, Omaha, Nebraska, USA
| | | | | | - Leandro Jerusalinsky
- Instituto Chico Mendes de Conservação da Biodiversidade, Centro Nacional de Pesquisa e Conservação de Primatas Brasileiros (ICMBio/CPB), Cabedelo, Paraíba, Brazil
| | - Fabiano R de Melo
- Department of Forest Engineering, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
- Centro de Conservação dos Saguis-da-Serra, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
| | - Mônica M Valença-Montenegro
- Instituto Chico Mendes de Conservação da Biodiversidade, Centro Nacional de Pesquisa e Conservação de Primatas Brasileiros (ICMBio/CPB), Cabedelo, Paraíba, Brazil
| | | | - Ita de Oliveira E Silva
- Institute of Humanities, Arts, and Sciences, Federal University of Southern Bahia, Itabuna, Bahia, Brazil
| | - Felipe Santos Pacheco
- Centro de Conservação dos Saguis-da-Serra, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
- Post-Graduate Program in Animal Biology, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
| | - Jeffrey Rogers
- Human Genome Sequencing Center, Baylor College of Medicine, Houston, Texas, USA
| | - Alcides Pissinatti
- Centro de Primatologia do Rio de Janeiro, Guapimirim, Rio de Janeiro, Brazil
| | - Ricardo C H Del Rosario
- Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Corinna Ross
- Science and Mathematics, Texas A&M University San Antonio, San Antonio, Texas, USA
- Texas Biomedical Research Institute, Southwest National Primate Research Center, San Antonio, Texas, USA
| | - Carlos R Ruiz-Miranda
- Laboratory of Environmental Sciences, Center for Biosciences and Biotechnology, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - Luiz C M Pereira
- Centro de Conservação e Manejo de Fauna da Caatinga, UNIVASF, Petrolina, Pernambuco, Brazil
| | - Nicola Schiel
- Department of Biology, Federal Rural University of Pernambuco, Recife, Brazil
| | | | - Antonio Souto
- Department of Zoology, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - Vedrana Šlipogor
- Department of Behavioral and Cognitive Biology, University of Vienna, Vienna, Austria
- Department of Zoology, Faculty of Science, University of South Bohemia, České Budějovice, Czechia
| | - Suzette Tardif
- Texas Biomedical Research Institute, Southwest National Primate Research Center, San Antonio, Texas, USA
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Siqueira PC, Catão RDC, Gava C, Maciel ELN, Prado TND. [Spatial-temporal diffusion of yellow fever in a state in Southeast Brazil in 2017]. CAD SAUDE PUBLICA 2021; 37:e00127620. [PMID: 34669767 DOI: 10.1590/0102-311x00127620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 01/12/2021] [Indexed: 11/21/2022] Open
Abstract
The objective was to analyze the diffusion of cases of yellow fever in time and space in the epidemic of 2017 in the state of Espírito Santo, Brazil. An ecological observational study was performed with spatial analysis of yellow fever cases. Georeferencing of information and spatial analysis used the digital grid for the state of Espírito Santo, divided into 78 municipalities (counties), using the Arcgis software, 10.3. Geostatistical analysis was performed using the ordinary kriging function. The study found an incidence of 4.85/100,000 inhabitants of sylvatic yellow fever in Espírito Santo in 2017, with 29.74% case-fatality. Sylvatic yellow fever cases were distributed across 34 of the state's 78 municipalities, representing 43% of its territory. The temporal distribution of reported yellow fever cases in the current study occurred from the 1st to the 19th Epidemiological Weeks (EW). The geostatistical spatial analysis via ordinary kriging demonstrated spatial diffusion by yellow fever contagion among the municipalities in the state of Espírito Santo, with spatial continuity. The disease emerged in the state in the EW 1 through municipalities bordering on the state of Minas Gerais. Geoprocessing showed that yellow fever reached the state of Espírito Santo through the municipalities bordering on the state of Minas Gerais, moving eastward in the state and reaching the Atlantic coastline. There was a higher concentration of cases and persistence in the state's Central and Metropolitan regions, which have areas of Atlantic Forest, showing a pattern of diffusion continuity by contagion.
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Affiliation(s)
| | | | - Caroline Gava
- Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz, Rio de Janeiro, Brasil
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8
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Berthet M, Mesbahi G, Duvot G, Zuberbühler K, Cäsar C, Bicca-Marques JC. Dramatic decline in a titi monkey population after the 2016-2018 sylvatic yellow fever outbreak in Brazil. Am J Primatol 2021; 83:e23335. [PMID: 34609763 DOI: 10.1002/ajp.23335] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 09/03/2021] [Accepted: 09/25/2021] [Indexed: 11/07/2022]
Abstract
Platyrrhini are highly vulnerable to the yellow fever (YF) virus. From 2016 to 2018, the Atlantic Forest of southeast Brazil faced its worst sylvatic YF outbreak in about a century, thought to have killed thousands of primates. It is essential to assess the impact of this epidemic on threatened primate assemblages to design effective conservation strategies. In this study, we assessed the impact of the 2016-2018 YF outbreak on a geographically isolated population of Near Threatened black-fronted titi monkeys (Callicebus nigrifrons) in two Atlantic Forest patches of the Santuário do Caraça, MG, Brazil. Extensive preoutbreak monitoring, conducted between 2008 and 2016, revealed that the home range and group sizes of the population remained stable. In 2016, the population size was estimated at 53-57 individuals in 11-12 groups. We conducted monitoring and playback surveys in 2019 and found that the population had decreased by 68% in one forest patch and completely vanished in the other, resulting in a combined decline of 80%. We discuss this severe loss of a previously stable population and conclude that it was highly likely caused by the YF outbreak. The remaining population is at risk of disappearing completely because of its small size and geographic isolation. A systematic population surveys of C. nigrifrons, along other sensible Platyrrhini species, is needed to re-evaluate their current conservation status.
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Affiliation(s)
- Mélissa Berthet
- Département d'études cognitives, Institut Jean Nicod, ENS, EHESS, CNRS, PSL Research University, Paris, France
| | - Geoffrey Mesbahi
- Université de Lorraine, INRAE, LAE, Nancy, France.,Parc Naturel Régional des Vosges du Nord, La Petite Pierre, France
| | - Guilhem Duvot
- Département d'études cognitives, Institut Jean Nicod, ENS, EHESS, CNRS, PSL Research University, Paris, France
| | - Klaus Zuberbühler
- School of Psychology & Neurosciences, University of St Andrews, Scotland, UK.,Institute of Biology, University of Neuchâtel, Neuchâtel, Switzerland
| | | | - Júlio Cèsar Bicca-Marques
- Escola de Ciências da Saúde e da Vida, Laboratório de Primatologia, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
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Re-emergence of yellow fever in the neotropics - quo vadis? Emerg Top Life Sci 2021; 4:399-410. [PMID: 33258924 PMCID: PMC7733675 DOI: 10.1042/etls20200187] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 11/05/2020] [Accepted: 11/09/2020] [Indexed: 02/02/2023]
Abstract
Yellow fever virus (YFV) is the etiological agent of yellow fever (YF), an acute hemorrhagic vector-borne disease with a significant impact on public health, is endemic across tropical regions in Africa and South America. The virus is maintained in two ecologically and evolutionary distinct transmission cycles: an enzootic, sylvatic cycle, where the virus circulates between arboreal Aedes species mosquitoes and non-human primates, and a human or urban cycle, between humans and anthropophilic Aedes aegypti mosquitoes. While the urban transmission cycle has been eradicated by a highly efficacious licensed vaccine, the enzootic transmission cycle is not amenable to control interventions, leading to recurrent epizootics and spillover outbreaks into human populations. The nature of YF transmission dynamics is multifactorial and encompasses a complex system of biotic, abiotic, and anthropogenic factors rendering predictions of emergence highly speculative. The recent outbreaks in Africa and Brazil clearly remind us of the significant impact YF emergence events pose on human and animal health. The magnitude of the Brazilian outbreak and spillover in densely populated areas outside the recommended vaccination coverage areas raised the specter of human — to — human transmission and re-establishment of enzootic cycles outside the Amazon basin. Herein, we review the factors that influence the re-emergence potential of YFV in the neotropics and offer insights for a constellation of coordinated approaches to better predict and control future YF emergence events.
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Chaves A, Piche-Ovares M, Ibarra-Cerdeña CN, Corrales-Aguilar E, Suzán G, Moreira-Soto A, Gutiérrez-Espeleta GA. Serosurvey of Nonhuman Primates in Costa Rica at the Human-Wildlife Interface Reveals High Exposure to Flaviviruses. INSECTS 2021; 12:insects12060554. [PMID: 34203687 PMCID: PMC8232092 DOI: 10.3390/insects12060554] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/29/2021] [Accepted: 06/11/2021] [Indexed: 11/17/2022]
Abstract
Simple Summary The presence of flavivirus-specific antibodies in neotropical non-human primates (NPs) (i.e., dengue virus) is well known. However, it is unclear if dengue virus or other flaviviruses could be maintained in sylvatic cycles. We detected the presence of antibodies against dengue virus (DENV-1, DENV-2), Saint Louis encephalitis virus (SLEV), West Nile virus (WNV), and several undetermined flaviviruses in NPs in Costa Rica. Our work suggests continuous exposure of NPs to several flaviviruses in Costa Rica. These findings open the question of whether bidirectional transmission between humans and non-human primates can occur due to human encroachment into NP habitats, the movement of NP into urban settings, or bridging vectors. Abstract Arthropod-borne viruses belonging to the flavivirus genus possess an enormous relevance in public health. Neotropical non-human primates (NPs) have been proposed to be susceptible to flavivirus infections due to their arboreal and diurnal habits, their genetic similarity to humans, and their relative closeness to humans. However, the only known flavivirus in the American continent maintained by sylvatic cycles involving NPs is yellow fever virus (YFV), and NPs’ role as potential hosts of other flaviviruses is still unknown. Here, we examined flavivirus exposure in 86 serum samples including 83.7% samples from free-range and 16.3% from captive NPs living in flavivirus-endemic regions of Costa Rica. Serum samples were opportunistically collected throughout Costa Rica in 2000–2015. We used a highly specific micro-plaque reduction neutralization test (micro-PRNT) to determine the presence of antibodies against YFV, dengue virus 1–4 (DENV), Zika virus, West Nile virus (WNV), and Saint Louis encephalitis virus (SLEV). We found evidence of seropositive NPs with homotypic reactivity to SLEV 11.6% (10/86), DENV 10.5% (9/86), and WNV 2.3% (2/86). Heterotypic reactivity was determined in 3.5% (3/86) of individuals against DENV, 1.2% (1/86) against SLEV, and 1.2% (1/86) against WNV. We found that 13.9% (12/86) of NPs were positive for an undetermined flavivirus species. No antibodies against DENV-3, DENV-4, YFV, or ZIKV were found. This work provides compelling serological evidence of flavivirus exposure in Costa Rican NPs, in particular to DENV, SLEV, and WNV. The range of years of sampling and the region from where positives were detected coincide with those in which peaks of DENV in human populations were registered, suggesting bidirectional exposure due to human–wildlife contact or bridging vectors. Our work suggests the continuous exposure of wildlife populations to various flaviviruses of public health importance and underscores the necessity of further surveillance of flaviviruses at the human–wildlife interface in Central America.
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Affiliation(s)
- Andrea Chaves
- School of Biology, University of Costa Rica, San José 11501-2060, Costa Rica;
- Department of Ethology, Wildlife and Laboratory Animals, School of Veterinary and Zootechnics, National Autonomous University of Mexico, Ciudad Universitaria, Av. Universidad #3000, Mexico City 04510, Mexico;
- Correspondence:
| | - Martha Piche-Ovares
- Virology-CIET (Center of Research in Tropical Diseases), University of Costa Rica, San José 2060-1000, Costa Rica; (M.P.-O.); (E.C.-A.); (A.M.-S.)
| | | | - Eugenia Corrales-Aguilar
- Virology-CIET (Center of Research in Tropical Diseases), University of Costa Rica, San José 2060-1000, Costa Rica; (M.P.-O.); (E.C.-A.); (A.M.-S.)
| | - Gerardo Suzán
- Department of Ethology, Wildlife and Laboratory Animals, School of Veterinary and Zootechnics, National Autonomous University of Mexico, Ciudad Universitaria, Av. Universidad #3000, Mexico City 04510, Mexico;
| | - Andres Moreira-Soto
- Virology-CIET (Center of Research in Tropical Diseases), University of Costa Rica, San José 2060-1000, Costa Rica; (M.P.-O.); (E.C.-A.); (A.M.-S.)
- Institute of Virology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10098 Berlin, Germany
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11
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Gaythorpe KA, Hamlet A, Jean K, Garkauskas Ramos D, Cibrelus L, Garske T, Ferguson N. The global burden of yellow fever. eLife 2021; 10:64670. [PMID: 33722340 PMCID: PMC7963473 DOI: 10.7554/elife.64670] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 02/23/2021] [Indexed: 12/22/2022] Open
Abstract
Yellow fever (YF) is a viral, vector-borne, haemorrhagic fever endemic in tropical regions of Africa and South America. The vaccine for YF is considered safe and effective, but intervention strategies need to be optimised; one of the tools for this is mathematical modelling. We refine and expand an existing modelling framework for Africa to account for transmission in South America. We fit to YF occurrence and serology data. We then estimate the subnational forces of infection for the entire endemic region. Finally, using demographic and vaccination data, we examine the impact of vaccination activities. We estimate that there were 109,000 (95% credible interval [CrI] [67,000–173,000]) severe infections and 51,000 (95% CrI [31,000–82,000]) deaths due to YF in Africa and South America in 2018. We find that mass vaccination activities in Africa reduced deaths by 47% (95% CrI [10%–77%]). This methodology allows us to evaluate the effectiveness of vaccination and illustrates the need for continued vigilance and surveillance of YF.
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Affiliation(s)
- Katy Am Gaythorpe
- WHO Collaborating Centre for Infectious Disease Modelling, MRC Centre for Global Infectious Disease Analysis, Abdul Latif Jameel Institute for Disease and Emergency Analytics (J-IDEA), Imperial College London, London, United Kingdom
| | - Arran Hamlet
- WHO Collaborating Centre for Infectious Disease Modelling, MRC Centre for Global Infectious Disease Analysis, Abdul Latif Jameel Institute for Disease and Emergency Analytics (J-IDEA), Imperial College London, London, United Kingdom
| | - Kévin Jean
- Maître de conférences, Laboratoire MESuRS - Cnam Paris, Paris, France
| | | | | | - Tini Garske
- WHO Collaborating Centre for Infectious Disease Modelling, MRC Centre for Global Infectious Disease Analysis, Abdul Latif Jameel Institute for Disease and Emergency Analytics (J-IDEA), Imperial College London, London, United Kingdom
| | - Neil Ferguson
- WHO Collaborating Centre for Infectious Disease Modelling, MRC Centre for Global Infectious Disease Analysis, Abdul Latif Jameel Institute for Disease and Emergency Analytics (J-IDEA), Imperial College London, London, United Kingdom
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12
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Sander AL, Yadouleton A, Moreira-Soto A, Tchibozo C, Hounkanrin G, Badou Y, Fischer C, Krause N, Akogbeto P, F de Oliveira Filho E, Dossou A, Brünink S, Drosten C, Aïssi MAJ, Harouna Djingarey M, Hounkpatin B, Nagel M, Drexler JF. An Observational Laboratory-Based Assessment of SARS-CoV-2 Molecular Diagnostics in Benin, Western Africa. mSphere 2021; 6:e00979-20. [PMID: 33441410 PMCID: PMC7845609 DOI: 10.1128/msphere.00979-20] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 12/16/2020] [Indexed: 12/23/2022] Open
Abstract
Information on severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spread in Africa is limited by insufficient diagnostic capacity. Here, we assessed the coronavirus disease (COVID-19)-related diagnostic workload during the onset of the pandemic in the central laboratory of Benin, Western Africa; characterized 12 SARS-CoV-2 genomes from returning travelers; and validated the Da An RT-PCR-based diagnostic kit that is widely used across Africa. We found a 15-fold increase in the monthly laboratory workload due to COVID-19, dealt with at the cost of routine activities. Genomic surveillance showed near-simultaneous introduction of distinct SARS-CoV-2 lineages termed A.4 and B.1, including the D614G spike protein variant potentially associated with higher transmissibility from travelers from six different European and African countries during March-April 2020. We decoded the target regions within the ORF1ab and N genes of the Da An dual-target kit by MinION-based amplicon sequencing. Despite relatively high similarity between SARS-CoV-2 and endemic human coronaviruses (HCoVs) within the ORF1ab target domain, no cross-detection of high-titered cell culture supernatants of HCoVs was observed, suggesting high analytical specificity. The Da An kit was highly sensitive, detecting 3.2 to 9.0 copies of target-specific in vitro transcripts/reaction. Although discrepant test results were observed in low-titered clinical samples, clinical sensitivity of the Da An kit was at least comparable to that of commercial kits from affluent settings. In sum, virologic diagnostics are achievable in a resource-limited setting, but unprecedented pressure resulting from COVID-19-related diagnostics requires rapid and sustainable support of national and supranational stakeholders addressing limited laboratory capacity.IMPORTANCE Months after the start of the COVID-19 pandemic, case numbers from Africa are surprisingly low, potentially because the number of SARS-CoV-2 tests performed in Africa is lower than in other regions. Here, we show an overload of COVID-19-related diagnostics in the central laboratory of Benin, Western Africa, with a stagnating average number of positive samples irrespective of daily sample counts. SARS-CoV-2 genomic surveillance confirmed a high genomic diversity in Benin introduced by travelers returning from Europe and other African countries, including early circulation of the D614G spike mutation associated with potentially higher transmissibility. We validated a widely used RT-PCR kit donated by the Chinese Jack Ma Foundation and confirmed high analytical specificity and clinical sensitivity equivalent to tests used in affluent settings. Our assessment shows that although achievable in an African setting, the burden from COVID-19-related diagnostics on national reference laboratories is very high.
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Affiliation(s)
- Anna-Lena Sander
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Anges Yadouleton
- Laboratoire des Fièvres Hémorragiques Virales du Benin, Cotonou, Benin
- Ecole Normale Supérieure de Natitingou, Université Nationale des Sciences, Technologies, Ingénierie et Mathématiques (UNSTIM), Natitingou, Benin
| | - Andres Moreira-Soto
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Carine Tchibozo
- Laboratoire des Fièvres Hémorragiques Virales du Benin, Cotonou, Benin
| | - Gildas Hounkanrin
- Laboratoire des Fièvres Hémorragiques Virales du Benin, Cotonou, Benin
| | - Yvette Badou
- Laboratoire des Fièvres Hémorragiques Virales du Benin, Cotonou, Benin
| | - Carlo Fischer
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Nina Krause
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | | | - Edmilson F de Oliveira Filho
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | | | - Sebastian Brünink
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Christian Drosten
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
- German Centre for Infection Research (DZIF), associated partner Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Melchior A Joël Aïssi
- Conseil National de Lutte contre le VIH-Sida, la Tuberculose, le Paludisme, les IST et les Epidémies, Cotonou, Benin
| | | | | | - Michael Nagel
- Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH, Bonn, Germany
| | - Jan Felix Drexler
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
- German Centre for Infection Research (DZIF), associated partner Charité-Universitätsmedizin Berlin, Berlin, Germany
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13
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de Oliveira Figueiredo P, Stoffella-Dutra AG, Barbosa Costa G, Silva de Oliveira J, Dourado Amaral C, Duarte Santos J, Soares Rocha KL, Araújo Júnior JP, Lacerda Nogueira M, Zazá Borges MA, Pereira Paglia A, Desiree LaBeaud A, Santos Abrahão J, Geessien Kroon E, Bretas de Oliveira D, Paiva Drumond B, de Souza Trindade G. Re-Emergence of Yellow Fever in Brazil during 2016-2019: Challenges, Lessons Learned, and Perspectives. Viruses 2020; 12:E1233. [PMID: 33143114 PMCID: PMC7692154 DOI: 10.3390/v12111233] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/20/2020] [Accepted: 10/23/2020] [Indexed: 12/15/2022] Open
Abstract
Yellow fever (YF) is a re-emerging viral zoonosis caused by the Yellow Fever virus (YFV), affecting humans and non-human primates (NHP). YF is endemic in South America and Africa, being considered a burden for public health worldwide despite the availability of an effective vaccine. Acute infectious disease can progress to severe hemorrhagic conditions and has high rates of morbidity and mortality in endemic countries. In 2016, Brazil started experiencing one of the most significant YF epidemics in its history, with lots of deaths being reported in regions that were previously considered free of the disease. Here, we reviewed the historical aspects of YF in Brazil, the epidemiology of the disease, the challenges that remain in Brazil's public health context, the main lessons learned from the recent outbreaks, and our perspective for facing future YF epidemics.
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Affiliation(s)
- Poliana de Oliveira Figueiredo
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil; (P.d.O.F.); (J.S.d.O.); (C.D.A.); (J.S.A.); (E.G.K.); (B.P.D.)
| | - Ana Gabriella Stoffella-Dutra
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil; (P.d.O.F.); (J.S.d.O.); (C.D.A.); (J.S.A.); (E.G.K.); (B.P.D.)
| | - Galileu Barbosa Costa
- Laboratório de Patologia e Biologia Molecular, Instituto Gonçalo Moniz, Oswaldo Cruz Foundation, Rua Waldemar Falcão, 121, Candeal, Salvador Bahia 40296-710, Brazil
| | - Jaqueline Silva de Oliveira
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil; (P.d.O.F.); (J.S.d.O.); (C.D.A.); (J.S.A.); (E.G.K.); (B.P.D.)
| | - Carolina Dourado Amaral
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil; (P.d.O.F.); (J.S.d.O.); (C.D.A.); (J.S.A.); (E.G.K.); (B.P.D.)
| | - Juliane Duarte Santos
- Centro Integrado de Pesquisa em Saúde, Faculdade de Medicina, Universidade Federal dos Vales do Jequitinhonha e Mucuri Campus JK, Diamantina, Minas Gerais, Rodovia MGT 367, Km 583, nº 5.000 Alto da Jacuba 39100-000, Brazil; (J.D.S.); (K.L.S.R.); (D.B.d.O.)
| | - Kamila Lorene Soares Rocha
- Centro Integrado de Pesquisa em Saúde, Faculdade de Medicina, Universidade Federal dos Vales do Jequitinhonha e Mucuri Campus JK, Diamantina, Minas Gerais, Rodovia MGT 367, Km 583, nº 5.000 Alto da Jacuba 39100-000, Brazil; (J.D.S.); (K.L.S.R.); (D.B.d.O.)
| | - João Pessoa Araújo Júnior
- Departamento de Microbiologia e Imunologia, Institute of Biotechnology, Universidade Estadual Paulista Júlio de Mesquita Filho, Rio Claro, São Paulo Avenida 24A, 1515, Bela Vista 13506-900, Brazil;
| | - Maurício Lacerda Nogueira
- Laboratório de Pesquisas em Virologia, Departamento de Doenças Infecciosas e Parasitárias, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto, São Paulo 15090-000, Brazil;
| | - Magno Augusto Zazá Borges
- Centro de Ciências Biológicas e da Saúde, Universidade Estadual de Montes Claros, Montes Claros, Minas Gerais, Avenida Prof. Rui Braga, s/n, Vila Mauriceia 39408-354, Brazil;
| | - Adriano Pereira Paglia
- Laboratório de Ecologia e Conservação, Departamento de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil;
| | - Angelle Desiree LaBeaud
- Department of Pediatrics, Division of Infectious Diseases, Stanford University School of Medicine, 300 Pasteur Dr Rm G312 MC 5208, Stanford, CA 94305, USA;
| | - Jônatas Santos Abrahão
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil; (P.d.O.F.); (J.S.d.O.); (C.D.A.); (J.S.A.); (E.G.K.); (B.P.D.)
| | - Erna Geessien Kroon
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil; (P.d.O.F.); (J.S.d.O.); (C.D.A.); (J.S.A.); (E.G.K.); (B.P.D.)
| | - Danilo Bretas de Oliveira
- Centro Integrado de Pesquisa em Saúde, Faculdade de Medicina, Universidade Federal dos Vales do Jequitinhonha e Mucuri Campus JK, Diamantina, Minas Gerais, Rodovia MGT 367, Km 583, nº 5.000 Alto da Jacuba 39100-000, Brazil; (J.D.S.); (K.L.S.R.); (D.B.d.O.)
| | - Betânia Paiva Drumond
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil; (P.d.O.F.); (J.S.d.O.); (C.D.A.); (J.S.A.); (E.G.K.); (B.P.D.)
| | - Giliane de Souza Trindade
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil; (P.d.O.F.); (J.S.d.O.); (C.D.A.); (J.S.A.); (E.G.K.); (B.P.D.)
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14
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Guth S, Hanley KA, Althouse BM, Boots M. Ecological processes underlying the emergence of novel enzootic cycles: Arboviruses in the neotropics as a case study. PLoS Negl Trop Dis 2020; 14:e0008338. [PMID: 32790670 PMCID: PMC7425862 DOI: 10.1371/journal.pntd.0008338] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Pathogens originating from wildlife (zoonoses) pose a significant public health burden, comprising the majority of emerging infectious diseases. Efforts to control and prevent zoonotic disease have traditionally focused on animal-to-human transmission, or "spillover." However, in the modern era, increasing international mobility and commerce facilitate the spread of infected humans, nonhuman animals (hereafter animals), and their products worldwide, thereby increasing the risk that zoonoses will be introduced to new geographic areas. Imported zoonoses can potentially "spill back" to infect local wildlife-a danger magnified by urbanization and other anthropogenic pressures that increase contacts between human and wildlife populations. In this way, humans can function as vectors, dispersing zoonoses from their ancestral enzootic systems to establish reservoirs elsewhere in novel animal host populations. Once established, these enzootic cycles are largely unassailable by standard control measures and have the potential to feed human epidemics. Understanding when and why translocated zoonoses establish novel enzootic cycles requires disentangling ecologically complex and stochastic interactions between the zoonosis, the human population, and the natural ecosystem. In this Review, we address this challenge by delineating potential ecological mechanisms affecting each stage of enzootic establishment-wildlife exposure, enzootic infection, and persistence-applying existing ecological concepts from epidemiology, invasion biology, and population ecology. We ground our discussion in the neotropics, where four arthropod-borne viruses (arboviruses) of zoonotic origin-yellow fever, dengue, chikungunya, and Zika viruses-have separately been introduced into the human population. This paper is a step towards developing a framework for predicting and preventing novel enzootic cycles in the face of zoonotic translocations.
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Affiliation(s)
- Sarah Guth
- Department of Integrative Biology, University of California, Berkeley, California, United States of America
| | - Kathryn A. Hanley
- Department of Biology, New Mexico State University, Las Cruces, New Mexico, United States of America
| | - Benjamin M. Althouse
- Department of Biology, New Mexico State University, Las Cruces, New Mexico, United States of America
- Epidemiology, Institute for Disease Modeling, Bellevue, Washington, United States of America
- Information School, University of Washington, Seattle, Washington, United States of America
| | - Mike Boots
- Department of Integrative Biology, University of California, Berkeley, California, United States of America
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15
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Hill SC, de Souza R, Thézé J, Claro I, Aguiar RS, Abade L, Santos FCP, Cunha MS, Nogueira JS, Salles FCS, Rocco IM, Maeda AY, Vasami FGS, du Plessis L, Silveira PP, de Jesus JG, Quick J, Fernandes NCCA, Guerra JM, Réssio RA, Giovanetti M, Alcantara LCJ, Cirqueira CS, Díaz-Delgado J, Macedo FLL, Timenetsky MDCST, de Paula R, Spinola R, Telles de Deus J, Mucci LF, Tubaki RM, de Menezes RMT, Ramos PL, de Abreu AL, Cruz LN, Loman N, Dellicour S, Pybus OG, Sabino EC, Faria NR. Genomic Surveillance of Yellow Fever Virus Epizootic in São Paulo, Brazil, 2016 - 2018. PLoS Pathog 2020; 16:e1008699. [PMID: 32764827 PMCID: PMC7437926 DOI: 10.1371/journal.ppat.1008699] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 08/19/2020] [Accepted: 06/10/2020] [Indexed: 12/17/2022] Open
Abstract
São Paulo, a densely inhabited state in southeast Brazil that contains the fourth most populated city in the world, recently experienced its largest yellow fever virus (YFV) outbreak in decades. YFV does not normally circulate extensively in São Paulo, so most people were unvaccinated when the outbreak began. Surveillance in non-human primates (NHPs) is important for determining the magnitude and geographic extent of an epizootic, thereby helping to evaluate the risk of YFV spillover to humans. Data from infected NHPs can give more accurate insights into YFV spread than when using data from human cases alone. To contextualise human cases, identify epizootic foci and uncover the rate and direction of YFV spread in São Paulo, we generated and analysed virus genomic data and epizootic case data from NHPs in São Paulo. We report the occurrence of three spatiotemporally distinct phases of the outbreak in São Paulo prior to February 2018. We generated 51 new virus genomes from YFV positive cases identified in 23 different municipalities in São Paulo, mostly sampled from NHPs between October 2016 and January 2018. Although we observe substantial heterogeneity in lineage dispersal velocities between phylogenetic branches, continuous phylogeographic analyses of generated YFV genomes suggest that YFV lineages spread in São Paulo at a mean rate of approximately 1km per day during all phases of the outbreak. Viral lineages from the first epizootic phase in northern São Paulo subsequently dispersed towards the south of the state to cause the second and third epizootic phases there. This alters our understanding of how YFV was introduced into the densely populated south of São Paulo state. Our results shed light on the sylvatic transmission of YFV in highly fragmented forested regions in São Paulo state and highlight the importance of continued surveillance of zoonotic pathogens in sentinel species.
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Affiliation(s)
- Sarah C. Hill
- Department of Zoology, University of Oxford, Oxford, United Kingdom
- Department of Pathobiology and Population Sciences, Royal Veterinary College, Hawkshead, United Kingdom
| | | | - Julien Thézé
- Department of Zoology, University of Oxford, Oxford, United Kingdom
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMR EPIA, Saint-Genès-Champanelle, France
| | - Ingra Claro
- Instituto de Medicina Tropical, Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina e, Universidade de São Paulo, São Paulo, Brazil
| | - Renato S. Aguiar
- Laboratório de Virologia Molecular, Departamento de Genética, Instituto de Biologia, Rio de Janeiro, Brazil
| | - Leandro Abade
- Department of Zoology, University of Oxford, Oxford, United Kingdom
| | | | | | | | - Flavia C. S. Salles
- Instituto de Medicina Tropical, Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina e, Universidade de São Paulo, São Paulo, Brazil
| | | | | | | | - Louis du Plessis
- Department of Zoology, University of Oxford, Oxford, United Kingdom
| | - Paola P. Silveira
- Laboratório de Virologia Molecular, Departamento de Genética, Instituto de Biologia, Rio de Janeiro, Brazil
| | - Jaqueline G. de Jesus
- Instituto de Medicina Tropical, Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina e, Universidade de São Paulo, São Paulo, Brazil
| | - Joshua Quick
- Institute of Microbiology and Infection, University of Birmingham, Birmingham, United Kingdom
| | | | | | | | - Marta Giovanetti
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | - Luiz C. J. Alcantara
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | | | | | | | | | - Regiane de Paula
- Centro de Vigilância Epidemiológica "Prof. Alexandre Vranjac", São Paulo, Brazil
| | - Roberta Spinola
- Centro de Vigilância Epidemiológica "Prof. Alexandre Vranjac", São Paulo, Brazil
| | | | - Luís F. Mucci
- Superintendência do Controle de Endemias, São Paulo, Brazil
| | | | | | | | - Andre L. de Abreu
- Secretaria de Vigilância em Saúde, Ministério da Saúde (SVS/MS), Brasília-DF, Brazil
| | | | - Nick Loman
- Institute of Microbiology and Infection, University of Birmingham, Birmingham, United Kingdom
| | - Simon Dellicour
- Spatial Epidemiology Lab (SpELL), Université Libre de Bruxelles, CP160/12 50, Bruxelles, Belgium
- Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Oliver G. Pybus
- Department of Zoology, University of Oxford, Oxford, United Kingdom
- Department of Pathobiology and Population Sciences, Royal Veterinary College, Hawkshead, United Kingdom
| | - Ester C. Sabino
- Instituto de Medicina Tropical, Departamento de Moléstias Infecciosas e Parasitárias, Faculdade de Medicina e, Universidade de São Paulo, São Paulo, Brazil
| | - Nuno R. Faria
- Department of Zoology, University of Oxford, Oxford, United Kingdom
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16
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Low JG, Ng JHJ, Ong EZ, Kalimuddin S, Wijaya L, Chan YFZ, Ng DHL, Tan HC, Baglody A, Chionh YH, Lee DCP, Budigi Y, Sasisekharan R, Ooi EE. Phase 1 Trial of a Therapeutic Anti-Yellow Fever Virus Human Antibody. N Engl J Med 2020; 383:452-459. [PMID: 32726531 DOI: 10.1056/nejmoa2000226] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND Insufficient vaccine doses and the lack of therapeutic agents for yellow fever put global health at risk, should this virus emerge from sub-Saharan Africa and South America. METHODS In phase 1a of this clinical trial, we assessed the safety, side-effect profile, and pharmacokinetics of TY014, a fully human IgG1 anti-yellow fever virus monoclonal antibody. In a double-blind, phase 1b clinical trial, we assessed the efficacy of TY014, as compared with placebo, in abrogating viremia related to the administration of live yellow fever vaccine (YF17D-204; Stamaril). The primary safety outcomes were adverse events reported 1 hour after the infusion and throughout the trial. The primary efficacy outcome was the dose of TY014 at which 100% of the participants tested negative for viremia within 48 hours after infusion. RESULTS A total of 27 healthy participants were enrolled in phase 1a, and 10 participants in phase 1b. During phase 1a, TY014 dose escalation to a maximum of 20 mg per kilogram of body weight occurred in 22 participants. During phases 1a and 1b, adverse events within 1 hour after infusion occurred in 1 of 27 participants who received TY014 and in none of the 10 participants who received placebo. At least one adverse event occurred during the trial in 22 participants who received TY014 and in 8 who received placebo. The mean half-life of TY014 was approximately 12.8 days. At 48 hours after the infusion, none of the 5 participants who received the starting dose of TY014 of 2 mg per kilogram had detectable YF17D-204 viremia; these participants remained aviremic throughout the trial. Viremia was observed at 48 hours after the infusion in 2 of 5 participants who received placebo and at 72 hours in 2 more placebo recipients. Symptoms associated with yellow fever vaccine were less frequent in the TY014 group than in the placebo group. CONCLUSIONS This phase 1 trial of TY014 did not identify worrisome safety signals and suggested potential clinical benefit, which requires further assessment in a phase 2 trial. (Funded by Tysana; ClinicalTrials.gov number, NCT03776786.).
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Affiliation(s)
- Jenny G Low
- From the Duke-National University of Singapore Medical School (J.G.L., E.Z.O., H.-C.T., E.-E.O.), Singapore General Hospital (J.G.L., S.K., L.W., Y.F.Z.C., D.H.L.N.), Tysana (J.H.J.N., A.B., Y.-H.C., D.C.P.L., Y.B.), and the Singapore-MIT (Massachusetts Institute of Technology) Alliance for Research and Technology (R.S., E.-E.O.) - all in Singapore; and the Massachusetts Institute of Technology, Cambridge (R.S.)
| | - Justin H J Ng
- From the Duke-National University of Singapore Medical School (J.G.L., E.Z.O., H.-C.T., E.-E.O.), Singapore General Hospital (J.G.L., S.K., L.W., Y.F.Z.C., D.H.L.N.), Tysana (J.H.J.N., A.B., Y.-H.C., D.C.P.L., Y.B.), and the Singapore-MIT (Massachusetts Institute of Technology) Alliance for Research and Technology (R.S., E.-E.O.) - all in Singapore; and the Massachusetts Institute of Technology, Cambridge (R.S.)
| | - Eugenia Z Ong
- From the Duke-National University of Singapore Medical School (J.G.L., E.Z.O., H.-C.T., E.-E.O.), Singapore General Hospital (J.G.L., S.K., L.W., Y.F.Z.C., D.H.L.N.), Tysana (J.H.J.N., A.B., Y.-H.C., D.C.P.L., Y.B.), and the Singapore-MIT (Massachusetts Institute of Technology) Alliance for Research and Technology (R.S., E.-E.O.) - all in Singapore; and the Massachusetts Institute of Technology, Cambridge (R.S.)
| | - Shirin Kalimuddin
- From the Duke-National University of Singapore Medical School (J.G.L., E.Z.O., H.-C.T., E.-E.O.), Singapore General Hospital (J.G.L., S.K., L.W., Y.F.Z.C., D.H.L.N.), Tysana (J.H.J.N., A.B., Y.-H.C., D.C.P.L., Y.B.), and the Singapore-MIT (Massachusetts Institute of Technology) Alliance for Research and Technology (R.S., E.-E.O.) - all in Singapore; and the Massachusetts Institute of Technology, Cambridge (R.S.)
| | - Limin Wijaya
- From the Duke-National University of Singapore Medical School (J.G.L., E.Z.O., H.-C.T., E.-E.O.), Singapore General Hospital (J.G.L., S.K., L.W., Y.F.Z.C., D.H.L.N.), Tysana (J.H.J.N., A.B., Y.-H.C., D.C.P.L., Y.B.), and the Singapore-MIT (Massachusetts Institute of Technology) Alliance for Research and Technology (R.S., E.-E.O.) - all in Singapore; and the Massachusetts Institute of Technology, Cambridge (R.S.)
| | - Yvonne F Z Chan
- From the Duke-National University of Singapore Medical School (J.G.L., E.Z.O., H.-C.T., E.-E.O.), Singapore General Hospital (J.G.L., S.K., L.W., Y.F.Z.C., D.H.L.N.), Tysana (J.H.J.N., A.B., Y.-H.C., D.C.P.L., Y.B.), and the Singapore-MIT (Massachusetts Institute of Technology) Alliance for Research and Technology (R.S., E.-E.O.) - all in Singapore; and the Massachusetts Institute of Technology, Cambridge (R.S.)
| | - Dorothy H L Ng
- From the Duke-National University of Singapore Medical School (J.G.L., E.Z.O., H.-C.T., E.-E.O.), Singapore General Hospital (J.G.L., S.K., L.W., Y.F.Z.C., D.H.L.N.), Tysana (J.H.J.N., A.B., Y.-H.C., D.C.P.L., Y.B.), and the Singapore-MIT (Massachusetts Institute of Technology) Alliance for Research and Technology (R.S., E.-E.O.) - all in Singapore; and the Massachusetts Institute of Technology, Cambridge (R.S.)
| | - Hwee-Cheng Tan
- From the Duke-National University of Singapore Medical School (J.G.L., E.Z.O., H.-C.T., E.-E.O.), Singapore General Hospital (J.G.L., S.K., L.W., Y.F.Z.C., D.H.L.N.), Tysana (J.H.J.N., A.B., Y.-H.C., D.C.P.L., Y.B.), and the Singapore-MIT (Massachusetts Institute of Technology) Alliance for Research and Technology (R.S., E.-E.O.) - all in Singapore; and the Massachusetts Institute of Technology, Cambridge (R.S.)
| | - Anjali Baglody
- From the Duke-National University of Singapore Medical School (J.G.L., E.Z.O., H.-C.T., E.-E.O.), Singapore General Hospital (J.G.L., S.K., L.W., Y.F.Z.C., D.H.L.N.), Tysana (J.H.J.N., A.B., Y.-H.C., D.C.P.L., Y.B.), and the Singapore-MIT (Massachusetts Institute of Technology) Alliance for Research and Technology (R.S., E.-E.O.) - all in Singapore; and the Massachusetts Institute of Technology, Cambridge (R.S.)
| | - Yok-Hian Chionh
- From the Duke-National University of Singapore Medical School (J.G.L., E.Z.O., H.-C.T., E.-E.O.), Singapore General Hospital (J.G.L., S.K., L.W., Y.F.Z.C., D.H.L.N.), Tysana (J.H.J.N., A.B., Y.-H.C., D.C.P.L., Y.B.), and the Singapore-MIT (Massachusetts Institute of Technology) Alliance for Research and Technology (R.S., E.-E.O.) - all in Singapore; and the Massachusetts Institute of Technology, Cambridge (R.S.)
| | - Debbie C P Lee
- From the Duke-National University of Singapore Medical School (J.G.L., E.Z.O., H.-C.T., E.-E.O.), Singapore General Hospital (J.G.L., S.K., L.W., Y.F.Z.C., D.H.L.N.), Tysana (J.H.J.N., A.B., Y.-H.C., D.C.P.L., Y.B.), and the Singapore-MIT (Massachusetts Institute of Technology) Alliance for Research and Technology (R.S., E.-E.O.) - all in Singapore; and the Massachusetts Institute of Technology, Cambridge (R.S.)
| | - Yadunanda Budigi
- From the Duke-National University of Singapore Medical School (J.G.L., E.Z.O., H.-C.T., E.-E.O.), Singapore General Hospital (J.G.L., S.K., L.W., Y.F.Z.C., D.H.L.N.), Tysana (J.H.J.N., A.B., Y.-H.C., D.C.P.L., Y.B.), and the Singapore-MIT (Massachusetts Institute of Technology) Alliance for Research and Technology (R.S., E.-E.O.) - all in Singapore; and the Massachusetts Institute of Technology, Cambridge (R.S.)
| | - Ram Sasisekharan
- From the Duke-National University of Singapore Medical School (J.G.L., E.Z.O., H.-C.T., E.-E.O.), Singapore General Hospital (J.G.L., S.K., L.W., Y.F.Z.C., D.H.L.N.), Tysana (J.H.J.N., A.B., Y.-H.C., D.C.P.L., Y.B.), and the Singapore-MIT (Massachusetts Institute of Technology) Alliance for Research and Technology (R.S., E.-E.O.) - all in Singapore; and the Massachusetts Institute of Technology, Cambridge (R.S.)
| | - Eng-Eong Ooi
- From the Duke-National University of Singapore Medical School (J.G.L., E.Z.O., H.-C.T., E.-E.O.), Singapore General Hospital (J.G.L., S.K., L.W., Y.F.Z.C., D.H.L.N.), Tysana (J.H.J.N., A.B., Y.-H.C., D.C.P.L., Y.B.), and the Singapore-MIT (Massachusetts Institute of Technology) Alliance for Research and Technology (R.S., E.-E.O.) - all in Singapore; and the Massachusetts Institute of Technology, Cambridge (R.S.)
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Ogunro BN, Olugasa BO, Kayode A, Ishola OO, Kolawole ON, Odigie EA, Happi C. Detection of Antibody and Antigen for Lassa Virus Nucleoprotein in Monkeys from Southern Nigeria. J Epidemiol Glob Health 2020; 9:125-127. [PMID: 31241870 PMCID: PMC7310747 DOI: 10.2991/jegh.k.190421.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Accepted: 04/13/2019] [Indexed: 01/30/2023] Open
Abstract
Lassa fever is a deadly viral haemorrhagic fever caused by Lassa Virus (LASV). Rodents, especially, Mystomys natalensis, are the known reservoirs of LASV and humans are the defined hosts. Monkeys share many illnesses with humans and experimental LASV infections in monkeys are fatal but natural LASV infection of monkeys has not been reported. Serum samples obtained between August 2015 and December 2017 from 62 monkeys belonging to six species in Southern Nigeria were tested for LASV as part of an ongoing surveillance of monkeys in the region for zoonotic pathogens. Commercially available Recombinant LASV (ReLASV) Pan-Lassa enzyme-linked immunosorbent assay (ELISA) test kits (Zalgen Labs, Germantown, MD, USA) were used to detect antibodies (IgG and IgM) and antigen specific for LASV nucleoprotein in the sera. Lassa-fever-specific IgG and IgM, and antigen specific for LASV nucleoprotein were detected in 5/62, 0/62, and 1/62 samples, respectively. The presence of LASV-specific antibodies in the sera suggests natural exposure to the virus, while the presence of LASV antigen may mean that monkeys are carriers of the virus. There is a need to broaden Lassa fever surveillance to include nonhuman primates (NHPs) for their probable role in the epidemiology of the disease. HIGHLIGHTSRodents are the natural reservoirs of Lassa fever virus (LASV) and humans are the defined hosts. Experimental LASV infections in non-human primates (NHP) are fatal but natural infection of NHP with the virus have not been reported. We detected antigen and antibody specific for LASV in free-living Monkeys from southern Nigeria which implies that monkeys in the region are naturally exposed to LASV and are probable carriers of the virus.
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Affiliation(s)
- Bamidele Nyemike Ogunro
- Veterinary Teaching Hospital, University of Ibadan, Ibadan, Oyo State, Nigeria.,Centre for Control and Prevention of Zoonoses, University of Ibadan, Ibadan, Oyo State, Nigeria.,Department of Veterinary Public Health and Preventive Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Babasola Oluseyi Olugasa
- Centre for Control and Prevention of Zoonoses, University of Ibadan, Ibadan, Oyo State, Nigeria.,Department of Veterinary Public Health and Preventive Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Adeyemi Kayode
- African Center for Excellence in Genomics of Infectious Diseases (ACEGID), Redeemer's University, Ede, Osun State, Nigeria.,Department of Biological Sciences, Redeemer's University, Ede, Osun State, Nigeria
| | - Olayinka Olabisi Ishola
- Department of Veterinary Public Health and Preventive Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Oluseyi Noah Kolawole
- Centre for Control and Prevention of Zoonoses, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Eugene Amiewanlen Odigie
- Department of Veterinary Public Health and Preventive Medicine, University of Benin, Edo State, Nigeria
| | - Christian Happi
- African Center for Excellence in Genomics of Infectious Diseases (ACEGID), Redeemer's University, Ede, Osun State, Nigeria
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18
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Fontenille D, Powell JR. From Anonymous to Public Enemy: How Does a Mosquito Become a Feared Arbovirus Vector? Pathogens 2020; 9:E265. [PMID: 32260491 PMCID: PMC7238163 DOI: 10.3390/pathogens9040265] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 04/01/2020] [Accepted: 04/02/2020] [Indexed: 01/17/2023] Open
Abstract
The past few decades have seen the emergence of several worldwide arbovirus epidemics (chikungunya, Zika), the expansion or recrudescence of historical arboviruses (dengue, yellow fever), and the modification of the distribution area of major vector mosquitoes such as Aedes aegypti and Ae. albopictus, raising questions about the risk of appearance of new vectors and new epidemics. In this opinion piece, we review the factors that led to the emergence of yellow fever in the Americas, define the conditions for a mosquito to become a vector, analyse the recent example of the new status of Aedes albopictus from neglected mosquito to major vector, and propose some scenarios for the future.
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Affiliation(s)
- Didier Fontenille
- MIVEGEC unit, Université de Montpellier, Institut de Recherche pour le Développement (IRD), CNRS, BP 64501, 34394 Montpellier, France
| | - Jeffrey R. Powell
- Department of Ecology and Evolutionary Biology, Yale University, 21 Sachem Street, New Haven, CT 06511-8934, USA;
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19
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de Abreu FVS, Ferreira-de-Brito A, Azevedo ADS, Linhares JHR, de Oliveira Santos V, Hime Miranda E, Neves MSAS, Yousfi L, Ribeiro IP, dos Santos AAC, dos Santos E, dos Santos TP, Teixeira DS, Gomes MQ, Fernandes CB, da Silva AMV, Lima MDRQ, Paupy C, Romano APM, Ano Bom APD, de Oliveira-Pinto LM, Moutailler S, Motta MDA, Castro MG, Bonaldo MC, Maria Barbosa de Lima S, Lourenço-de-Oliveira R. Survey on Non-Human Primates and Mosquitoes Does not Provide Evidences of Spillover/Spillback between the Urban and Sylvatic Cycles of Yellow Fever and Zika Viruses Following Severe Outbreaks in Southeast Brazil. Viruses 2020; 12:E364. [PMID: 32224891 PMCID: PMC7232473 DOI: 10.3390/v12040364] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/10/2020] [Accepted: 02/16/2020] [Indexed: 12/14/2022] Open
Abstract
In the last decade, Flaviviruses such as yellow fever (YFV) and Zika (ZIKV) have expanded their transmission areas. These viruses originated in Africa, where they exhibit both sylvatic and interhuman transmission cycles. In Brazil, the risk of YFV urbanization has grown, with the sylvatic transmission approaching the most densely populated metropolis, while concern about ZIKV spillback to a sylvatic cycle has risen. To investigate these health threats, we carried out extensive collections and arbovirus screening of 144 free-living, non-human primates (NHPs) and 5219 mosquitoes before, during, and after ZIKV and YFV outbreaks (2015-2018) in southeast Brazil. ZIKV infection was not detected in any NHP collected at any time. In contrast, current and previous YFV infections were detected in NHPs sampled between 2017 and 2018, but not before the onset of the YFV outbreak. Mosquito pools screened by high-throughput PCR were positive for YFV when captured in the wild and during the YFV outbreak, but were negative for 94 other arboviruses, including ZIKV, regardless of the time of collection. In conclusion, there was no evidence of YFV transmission in coastal southeast Brazil before the current outbreak, nor the spread or establishment of an independent sylvatic cycle of ZIKV or urban Aedes aegypti transmission of YFV in the region. In view of the region's receptivity and vulnerability to arbovirus transmission, surveillance of NHPs and mosquitoes should be strengthened and continuous.
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Affiliation(s)
- Filipe Vieira Santos de Abreu
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Rio de Janeiro 21040-900, Brazil; (F.V.S.d.A.); (A.F.-d.-B.); (M.S.A.S.N.); (M.Q.G.); (M.d.A.M.); (M.G.C.)
- Instituto Federal do Norte de Minas Gerais, Salinas 39560-000, Brazil
| | - Anielly Ferreira-de-Brito
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Rio de Janeiro 21040-900, Brazil; (F.V.S.d.A.); (A.F.-d.-B.); (M.S.A.S.N.); (M.Q.G.); (M.d.A.M.); (M.G.C.)
| | - Adriana de Souza Azevedo
- Laboratório de Tecnologia Virológica, Instituto de Tecnologia em Imunobiológicos Bio-Manguinhos, Rio de Janeiro 21040-900, Brazil; (A.d.S.A.); (J.H.R.L.); (V.d.O.S.); (E.H.M.); (S.M.B.d.L.)
| | - José Henrique Rezende Linhares
- Laboratório de Tecnologia Virológica, Instituto de Tecnologia em Imunobiológicos Bio-Manguinhos, Rio de Janeiro 21040-900, Brazil; (A.d.S.A.); (J.H.R.L.); (V.d.O.S.); (E.H.M.); (S.M.B.d.L.)
| | - Vanessa de Oliveira Santos
- Laboratório de Tecnologia Virológica, Instituto de Tecnologia em Imunobiológicos Bio-Manguinhos, Rio de Janeiro 21040-900, Brazil; (A.d.S.A.); (J.H.R.L.); (V.d.O.S.); (E.H.M.); (S.M.B.d.L.)
| | - Emily Hime Miranda
- Laboratório de Tecnologia Virológica, Instituto de Tecnologia em Imunobiológicos Bio-Manguinhos, Rio de Janeiro 21040-900, Brazil; (A.d.S.A.); (J.H.R.L.); (V.d.O.S.); (E.H.M.); (S.M.B.d.L.)
| | - Maycon Sebastião Alberto Santos Neves
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Rio de Janeiro 21040-900, Brazil; (F.V.S.d.A.); (A.F.-d.-B.); (M.S.A.S.N.); (M.Q.G.); (M.d.A.M.); (M.G.C.)
| | - Lena Yousfi
- UMR BIPAR, Animal Health Laboratory, ANSES, INRA, Ecole Nationale Vétérinaire d’Alfort, Université Paris-Est, 94700 Maisons-Alfort, France; (L.Y.); (S.M.)
| | - Ieda Pereira Ribeiro
- Laboratório de Biologia Molecular de Flavivirus, Instituto Oswaldo Cruz, Rio de Janeiro 21040-900, Brazil; (I.P.R.); (A.A.C.d.S.); (M.C.B.)
| | - Alexandre Araújo Cunha dos Santos
- Laboratório de Biologia Molecular de Flavivirus, Instituto Oswaldo Cruz, Rio de Janeiro 21040-900, Brazil; (I.P.R.); (A.A.C.d.S.); (M.C.B.)
| | - Edmilson dos Santos
- Divisão de Vigilância Ambiental em Saúde, Secretaria de Saúde do Rio Grande do Sul, Porto Alegre 90610-000, Brazil;
| | - Taissa Pereira dos Santos
- MIVEGEC, CNRS, Institut de Recherche pour le Développement (IRD), Université de Montpellier, 34394 Montpellier, France; (T.P.d.S.); (C.P.)
| | - Danilo Simonini Teixeira
- Núcleo de Atendimento e Pesquisa de Animais Silvestres, Universidade Estadual de Santa Cruz, Ilhéus 45662-900, Brazil;
| | - Marcelo Quintela Gomes
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Rio de Janeiro 21040-900, Brazil; (F.V.S.d.A.); (A.F.-d.-B.); (M.S.A.S.N.); (M.Q.G.); (M.d.A.M.); (M.G.C.)
| | - Camilla Bayma Fernandes
- Laboratório de Tecnologia Imunológica, Instituto de Tecnologia em Imunobiológicos Bio-Manguinhos, Rio de Janeiro 21040-900, Brazil; (C.B.F.); (A.M.V.d.S.); (A.P.D.A.B.)
| | - Andrea Marques Vieira da Silva
- Laboratório de Tecnologia Imunológica, Instituto de Tecnologia em Imunobiológicos Bio-Manguinhos, Rio de Janeiro 21040-900, Brazil; (C.B.F.); (A.M.V.d.S.); (A.P.D.A.B.)
| | - Monique da Rocha Queiroz Lima
- Laboratório de Imunologia Viral, Instituto Oswaldo Cruz, Rio de Janeiro 21040-900, Brazil; (M.d.R.Q.L.); (L.M.d.O.-P.)
| | - Christophe Paupy
- MIVEGEC, CNRS, Institut de Recherche pour le Développement (IRD), Université de Montpellier, 34394 Montpellier, France; (T.P.d.S.); (C.P.)
| | | | - Ana Paula Dinis Ano Bom
- Laboratório de Tecnologia Imunológica, Instituto de Tecnologia em Imunobiológicos Bio-Manguinhos, Rio de Janeiro 21040-900, Brazil; (C.B.F.); (A.M.V.d.S.); (A.P.D.A.B.)
| | - Luzia Maria de Oliveira-Pinto
- Laboratório de Imunologia Viral, Instituto Oswaldo Cruz, Rio de Janeiro 21040-900, Brazil; (M.d.R.Q.L.); (L.M.d.O.-P.)
| | - Sara Moutailler
- UMR BIPAR, Animal Health Laboratory, ANSES, INRA, Ecole Nationale Vétérinaire d’Alfort, Université Paris-Est, 94700 Maisons-Alfort, France; (L.Y.); (S.M.)
| | - Monique de Albuquerque Motta
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Rio de Janeiro 21040-900, Brazil; (F.V.S.d.A.); (A.F.-d.-B.); (M.S.A.S.N.); (M.Q.G.); (M.d.A.M.); (M.G.C.)
| | - Márcia Gonçalves Castro
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Rio de Janeiro 21040-900, Brazil; (F.V.S.d.A.); (A.F.-d.-B.); (M.S.A.S.N.); (M.Q.G.); (M.d.A.M.); (M.G.C.)
| | - Myrna Cristina Bonaldo
- Laboratório de Biologia Molecular de Flavivirus, Instituto Oswaldo Cruz, Rio de Janeiro 21040-900, Brazil; (I.P.R.); (A.A.C.d.S.); (M.C.B.)
| | - Sheila Maria Barbosa de Lima
- Laboratório de Tecnologia Virológica, Instituto de Tecnologia em Imunobiológicos Bio-Manguinhos, Rio de Janeiro 21040-900, Brazil; (A.d.S.A.); (J.H.R.L.); (V.d.O.S.); (E.H.M.); (S.M.B.d.L.)
| | - Ricardo Lourenço-de-Oliveira
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Rio de Janeiro 21040-900, Brazil; (F.V.S.d.A.); (A.F.-d.-B.); (M.S.A.S.N.); (M.Q.G.); (M.d.A.M.); (M.G.C.)
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20
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Mares-Guia MAMDM, Horta MA, Romano A, Rodrigues CDS, Mendonça MCL, Dos Santos CC, Torres MC, Araujo ESM, Fabri A, de Souza ER, Ribeiro ROR, Lucena FP, Junior LCA, da Cunha RV, Nogueira RMR, Sequeira PC, de Filippis AMB. Yellow fever epizootics in non-human primates, Southeast and Northeast Brazil (2017 and 2018). Parasit Vectors 2020; 13:90. [PMID: 32075684 PMCID: PMC7031979 DOI: 10.1186/s13071-020-3966-x] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Accepted: 02/13/2020] [Indexed: 11/24/2022] Open
Abstract
Background Yellow fever (YF) is a severe, infectious, but non-communicable arboviral hemorrhagic disease. In the last decades, yellow fever virus (YFV) infections have been prevalent in endemic areas in Brazil, affecting human and non-human primate (NHP) populations. Monitoring of NHP infection started in 1999, and reports of epizootic diseases are considered important indicators of viral transmission, particularly in relation to the sylvatic cycle. This study presents the monitoring of YFV by real-time RT-PCR and the epidemiological findings related to the deaths of NHPs in the south-eastern states and in the north-eastern state of Bahia, during the outbreak of YF in Brazil during 2017 and 2018. Methods A total of 4198 samples from 2099 NHPs from south-eastern and north-eastern Brazilian states were analyzed by real-time reverse transcription polymerase chain reaction (rtRT-PCR). Results A total of 4198 samples from 2099 NHPs from south-eastern and north-eastern Brazilian states were collected between 2017 and 2018. The samples were subjected to molecular diagnostics for YFV detection using real-time reverse transcription polymerase chain reaction (rtRT-PCR) techniques. Epizootics were coincident with human YF cases. Furthermore, our results showed that the YF frequency was higher among marmosets (Callithrix sp.) than in previous reports. Viremia in species of the genus Alouatta and Callithrix differed greatly. Discussion Our results indicate a need for further investigation of the role of Callithrix spp. in the transmission cycles of YFV in Brazil. In particular, YFV transmission was observed in a region where viral circulation has not been recorded for decades and thus vaccination has not been previously recommended. Conclusions This highlights the need to straighten epizootic surveillance and evaluate the extent of vaccination programmes in Brazil in previously considered “YFV-free” areas of the country.
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Affiliation(s)
| | - Marco A Horta
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Alessandro Romano
- Secretaria de Vigilância em Saúde/Ministério da Saúde, Brasília, Brazil
| | - Cíntia D S Rodrigues
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marcos C L Mendonça
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Carolina C Dos Santos
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Maria C Torres
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Eliane S M Araujo
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Allison Fabri
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Everton R de Souza
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Roberta O R Ribeiro
- Laboratório Municipal de Saúde Pública (LASP), Instituto Municipal de Medicina Veterinária Jorge Vaitsman, Rio de Janeiro, Brazil
| | - Fabiana P Lucena
- Laboratório Municipal de Saúde Pública (LASP), Instituto Municipal de Medicina Veterinária Jorge Vaitsman, Rio de Janeiro, Brazil
| | - Luiz C A Junior
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Rivaldo V da Cunha
- Coordenação de Vigilância em Saúde e Laboratórios de Referência da Fundação Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | - Rita M R Nogueira
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Patricia C Sequeira
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ana M Bispo de Filippis
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Rio de Janeiro, Brazil
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Long-Term Protection of Rhesus Macaques from Zika Virus Reinfection. J Virol 2020; 94:JVI.01881-19. [PMID: 31801867 PMCID: PMC7022347 DOI: 10.1128/jvi.01881-19] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 11/25/2019] [Indexed: 01/07/2023] Open
Abstract
By the end of the 2016 Zika virus (ZIKV) outbreak, it is estimated that there were up to 100 million infections in the Americas. In approximately one in seven infants born to mothers infected during pregnancy, ZIKV has been linked to microcephaly, developmental delays, or other congenital disorders collectively known as congenital Zika syndrome, as well as Guillain-Barré syndrome, in ZIKV-infected adults. It is a global health priority to develop a vaccine against ZIKV that elicits long-lasting immunity; however, the durability of immunity to ZIKV is unknown. Previous studies in mice and nonhuman primates have been crucial in vaccine development but have not defined the duration of immunity generated by ZIKV infection. In this study, we rechallenged five rhesus macaques with ZIKV 22 to 28 months after a primary ZIKV infection. We show that primary ZIKV infection generates high titers of neutralizing antibodies that protect from detectable plasma viremia following rechallenge and persist for at least 22 to 28 months. While additional longitudinal studies are necessary with longer time frames, this study establishes a new experimentally defined minimal length of protective ZIKV immunity.IMPORTANCE ZIKV emerged as a vector-borne pathogen capable of causing illness in infected adults and congenital birth defects in infants born to mothers infected during pregnancy. Despite the decrease in ZIKV cases since the 2015-2016 epidemic, questions concerning the prevalence and longevity of protective immunity have left vulnerable communities fearful that they may become the center of next ZIKV outbreak. Although preexisting herd immunity in regions of past outbreaks may dampen the potential for future outbreaks to occur, we currently do not know the longevity of protective immunity to ZIKV after a person becomes infected. Here, we establish a new experimentally defined minimal length of protective ZIKV immunity. We show that five rhesus macaques initially infected with ZIKV 22 to 28 months prior to rechallenge elicit a durable immune response that protected from detectable plasma viremia. This study establishes a new minimal length of protective immunity.
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22
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Girard YA, Santa Maria F, Lanteri MC. Inactivation of yellow fever virus with amotosalen and ultraviolet A light pathogen-reduction technology. Transfusion 2020; 60:622-627. [PMID: 31957887 PMCID: PMC7078960 DOI: 10.1111/trf.15673] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 10/14/2019] [Accepted: 10/30/2019] [Indexed: 12/24/2022]
Abstract
BACKGROUND The reemergence of yellow fever virus (YFV) in Africa and Brazil, and massive vaccine campaigns triggered to contain the outbreaks, have raised concerns over blood transfusion safety and availability with increased risk of YFV transfusion-transmitted infections (TTIs) by native and vaccine-acquired YFV. Blood donor deferral for 2 to 4 weeks following live attenuated YFV vaccination, and deferral for travel to endemic/epidemic areas, may result in blood donor loss and impact platelet component (PC) stocks. This study investigated the efficacy of INTERCEPT Blood System pathogen reduction (PR) with use of amotosalen and ultraviolet A (UVA) light to inactivate high levels of YFV in PCs. MATERIALS Four units of apheresis platelets prepared in 35% plasma/65% platelet additive solution (PC-PAS) and 4 units of PC in 100% human plasma (PC-Plasma) were spiked with high infectious titers of YFV (YFV-17D vaccine strain). YFV-17D infectious titers were measured by plaque assay and expressed as plaque-forming units (PFU) before and after amotosalen/UVA treatment to determine log reduction. RESULTS The mean YFV-17D infectious titers in PC before inactivation were 5.5 ± 0.1 log PFU/mL in PC-PAS and 5.3 ± 0.1 log PFU/mL in PC-Plasma. No infectivity was detected immediately after amotosalen/UVA treatment. CONCLUSION The amotosalen/UVA PR system inactivated high titers of infectious YFV-17D in PC. This PR technology could reduce the risk of YFV TTI and help secure PC supplies in areas experiencing YFV outbreaks where massive vaccination campaigns are required.
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Affiliation(s)
- Yvette A Girard
- Department of Microbiology, Cerus Corporation, Concord, California
| | | | - Marion C Lanteri
- Department of Scientific Affairs, Cerus Corporation, Concord, California
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23
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Origin of the São Paulo Yellow Fever epidemic of 2017-2018 revealed through molecular epidemiological analysis of fatal cases. Sci Rep 2019; 9:20418. [PMID: 31892699 PMCID: PMC6938505 DOI: 10.1038/s41598-019-56650-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 12/11/2019] [Indexed: 01/03/2023] Open
Abstract
The largest outbreak of yellow fever of the 21st century in the Americas began in 2016, with intense circulation in the southeastern states of Brazil, particularly in sylvatic environments near densely populated areas including the metropolitan region of São Paulo city (MRSP) during 2017–2018. Herein, we describe the origin and molecular epidemiology of yellow fever virus (YFV) during this outbreak inferred from 36 full genome sequences taken from individuals who died following infection with zoonotic YFV. Our analysis revealed that these deaths were due to three genetic variants of sylvatic YFV that belong the South American I genotype and that were related to viruses previously isolated in 2017 from other locations in Brazil (Minas Gerais, Espírito Santo, Bahia and Rio de Janeiro states). Each variant represented an independent virus introduction into the MRSP. Phylogeographic and geopositioning analyses suggested that the virus moved around the peri-urban area without detectable human-to-human transmission, and towards the Atlantic rain forest causing human spill-over in nearby cities, yet in the absence of sustained viral transmission in the urban environment.
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Hadfield J, Brito AF, Swetnam DM, Vogels CBF, Tokarz RE, Andersen KG, Smith RC, Bedford T, Grubaugh ND. Twenty years of West Nile virus spread and evolution in the Americas visualized by Nextstrain. PLoS Pathog 2019; 15:e1008042. [PMID: 31671157 PMCID: PMC6822705 DOI: 10.1371/journal.ppat.1008042] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
It has been 20 years since West Nile virus first emerged in the Americas, and since then, little progress has been made to control outbreaks caused by this virus. After its first detection in New York in 1999, West Nile virus quickly spread across the continent, causing an epidemic of human disease and massive bird die-offs. Now the virus has become endemic to the United States, where an estimated 7 million human infections have occurred, making it the leading mosquito-borne virus infection and the most common cause of viral encephalitis in the country. To bring new attention to one of the most important mosquito-borne viruses in the Americas, we provide an interactive review using Nextstrain: a visualization tool for real-time tracking of pathogen evolution (nextstrain.org/WNV/NA). Nextstrain utilizes a growing database of more than 2,000 West Nile virus genomes and harnesses the power of phylogenetics for students, educators, public health workers, and researchers to visualize key aspects of virus spread and evolution. Using Nextstrain, we use virus genomics to investigate the emergence of West Nile virus in the U S, followed by its rapid spread, evolution in a new environment, establishment of endemic transmission, and subsequent international spread. For each figure, we include a link to Nextstrain to allow the readers to directly interact with and explore the underlying data in new ways. We also provide a brief online narrative that parallels this review to further explain the data and highlight key epidemiological and evolutionary features (nextstrain.org/narratives/twenty-years-of-WNV). Mirroring the dynamic nature of outbreaks, the Nextstrain links provided within this paper are constantly updated as new West Nile virus genomes are shared publicly, helping to stay current with the research. Overall, our review showcases how genomics can track West Nile virus spread and evolution, as well as potentially uncover novel targeted control measures to help alleviate its public health burden.
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Affiliation(s)
- James Hadfield
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Anderson F. Brito
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, Connecticut, United States of America
| | - Daniele M. Swetnam
- Department of Pathology, Microbiology and Immunology, University of California, Davis, Davis, California, United States of America
| | - Chantal B. F. Vogels
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, Connecticut, United States of America
| | - Ryan E. Tokarz
- Department of Entomology, Iowa State University, Ames, Iowa, United States of America
| | - Kristian G. Andersen
- Department of Immunology and Microbiology, Scripps Research, La Jolla, California, United States of America
- Scripps Research Translational Institute, La Jolla, California, United States of America
| | - Ryan C. Smith
- Department of Entomology, Iowa State University, Ames, Iowa, United States of America
| | - Trevor Bedford
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Nathan D. Grubaugh
- Department of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, Connecticut, United States of America
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25
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Travelling arboviruses: A historical perspective. Travel Med Infect Dis 2019; 31:101471. [DOI: 10.1016/j.tmaid.2019.101471] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 08/26/2019] [Indexed: 11/24/2022]
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26
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Pedroso C, Fischer C, Feldmann M, Sarno M, Luz E, Moreira-Soto A, Cabral R, Netto EM, Brites C, Kümmerer BM, Drexler JF. Cross-Protection of Dengue Virus Infection against Congenital Zika Syndrome, Northeastern Brazil. Emerg Infect Dis 2019; 25:1485-1493. [PMID: 31075077 PMCID: PMC6649334 DOI: 10.3201/eid2508.190113] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
The Zika virus outbreak in Latin America resulted in congenital malformations, called congenital Zika syndrome (CZS). For unknown reasons, CZS incidence was highest in northeastern Brazil; one potential explanation is that dengue virus (DENV)–mediated immune enhancement may promote CZS development. In contrast, our analyses of historical DENV genomic data refuted the hypothesis that unique genome signatures for northeastern Brazil explain the uneven dispersion of CZS cases. To confirm our findings, we performed serotype-specific DENV neutralization tests in a case–control framework in northeastern Brazil among 29 Zika virus–seropositive mothers of neonates with CZS and 108 Zika virus–seropositive control mothers. Neutralization titers did not differ significantly between groups. In contrast, DENV seroprevalence and median number of neutralized serotypes were significantly lower among the mothers of neonates with CZS. Supported by model analyses, our results suggest that multitypic DENV infection may protect from, rather than enhance, development of CZS.
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27
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Jácome R, Carrasco-Hernández R, Campillo-Balderas JA, López-Vidal Y, Lazcano A, Wenzel RP, Ponce de León S. A yellow flag on the horizon: The looming threat of yellow fever to North America. Int J Infect Dis 2019; 87:143-150. [PMID: 31382047 DOI: 10.1016/j.ijid.2019.07.033] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 07/26/2019] [Accepted: 07/26/2019] [Indexed: 01/12/2023] Open
Abstract
OBJECTIVES Yellow fever virus historically was a frequent threat to American and European coasts. Medical milestones such as the discovery of mosquitoes as vectors and subsequently an effective vaccine significantly reduced its incidence, in spite of which, thousands of cases of this deathly disease still occur regularly in Sub-Saharan Africa and the Amazonian basin in South America, which are usually not reported. An urban outbreak in Angola, consecutive years of increasing incidence near major Brazilian cities, and imported cases in China, South America and Europe, have brought this virus back to the global spotlight. The aim of this article is to underline that the preventive YFV measures, such as vaccination, need to be carefully revised in order to minimize the risks of new YFV outbreaks, especially in urban or immunologically vulnerable places. Furthermore, this article highlights the diverse factors that have favored the spread of other Aedes spp.-associated arboviral diseases like Dengue, Chikungunya and Zika, to northern latitudes causing epidemics in the United States and Europe, emphasizing the possibility that YFV might follow the path of these viruses unless enhanced surveillance and efficient control systems are urgently initiated.
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Affiliation(s)
- Rodrigo Jácome
- Laboratorio de Origen de la Vida, Facultad de Ciencias, Universidad Nacional Autónoma de México, Av. Universidad 3000, C.P. 04510, Mexico City, Mexico
| | - R Carrasco-Hernández
- División de Investigación, Facultad de Medicina, Universidad Nacional Autónoma de México, Av. Universidad 3000, C.P. 04510, Mexico City, Mexico
| | - José Alberto Campillo-Balderas
- Laboratorio de Origen de la Vida, Facultad de Ciencias, Universidad Nacional Autónoma de México, Av. Universidad 3000, C.P. 04510, Mexico City, Mexico
| | - Yolanda López-Vidal
- Programa de Inmunología Molecular Microbiana, Facultad de Medicina, Universidad Nacional Autónoma de México, Av. Universidad 3000, C.P. 04510, Mexico City, Mexico
| | - Antonio Lazcano
- Laboratorio de Origen de la Vida, Facultad de Ciencias, Universidad Nacional Autónoma de México, Av. Universidad 3000, C.P. 04510, Mexico City, Mexico; Miembro de El Colegio Nacional, Mexico
| | | | - Samuel Ponce de León
- Programa Universitario de Investigación en Salud, Universidad Nacional Autónoma de México, Av. Universidad 3000, C.P. 04510, Mexico City, Mexico.
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28
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Figueiredo LTM. Human Urban Arboviruses Can Infect Wild Animals and Jump to Sylvatic Maintenance Cycles in South America. Front Cell Infect Microbiol 2019; 9:259. [PMID: 31380302 PMCID: PMC6653809 DOI: 10.3389/fcimb.2019.00259] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 07/03/2019] [Indexed: 11/14/2022] Open
Abstract
The present study shows that the most prominent human arboviruses worldwide (dengue viruses 1, 2, 3, and 4, Chikungunya virus, and Zika virus) can infect wild animals and transfer from urban to sylvatic maintenance cycles in South America, as did the yellow fever virus (YFV) in the past. All these viruses are transmitted by the anthropophilic mosquito Aedes aegypti and cause epidemics throughout Brazil. The YFV is the oldest example of an urban arbovirus that became sylvatic in South America. Currently, the disease is a zoonosis of non-human primates that moves like a wave through the forests of the Brazilian countryside, traveling thousands of kilometers, killing many animals and eventually infecting man. However, since 2016, this zoonotic wave has reached the highly populated areas of Southeast Brazil, producing the largest human outbreak in the past 60 years. As with the YFV, sylvatic cycles may occur with dengue, Chikungunya, and Zika. In order to become sylvatic, arboviruses require an apparently unlikely conjunction of factors to unexpectedly take place. These arboviruses could start to infect sylvatic primates and be transmitted by Haemagogus mosquitoes that inhabit tree canopies. We mention here publications reporting evidence of sylvatic cycles of dengue, Chikungunya, and Zika virus in South America. Indeed, it is almost unfeasible to control these cycles of arboviruses since it is impossible to know where, when or why an arboviral spill-over would occur in wild animals. The sylvatic maintenance cycle could preclude the eradication of an arbovirus. Moreover, an arbovirus in a sylvatic cycle could re-emerge anytime, infecting humans and producing outbreaks. In case of the reemergence of an arbovirus, it is crucial to prevent the occurrence of an urban cycle as a spill-back from the sylvatic cycle.
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Chame M, Barbosa HJC, Gadelha LMR, Augusto DA, Krempser E, Abdalla L. SISS-Geo: Leveraging Citizen Science to Monitor Wildlife Health Risks in Brazil. JOURNAL OF HEALTHCARE INFORMATICS RESEARCH 2019; 3:414-440. [DOI: 10.1007/s41666-019-00055-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 06/09/2019] [Accepted: 06/20/2019] [Indexed: 11/28/2022]
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30
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Burdmann EA. Flaviviruses and Kidney Diseases. Adv Chronic Kidney Dis 2019; 26:198-206. [PMID: 31202392 DOI: 10.1053/j.ackd.2019.01.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 01/08/2019] [Accepted: 01/09/2019] [Indexed: 12/17/2022]
Abstract
The genus Flavivirus comprises approximately 73 viruses, which share several common aspects, such as dimension, structure, nucleic acid properties, and shape in electronic microscopy. Global incidence of flavivirus infection increased dramatically over the last decades, causing large outbreaks in several areas of the world. These viruses are expanding from endemic tropical and subtropical areas to previously nonendemic areas, affecting and causing diseases in millions of individuals worldwide and posing a formidable challenge to public health in several countries. The majority of clinically significant flavivirus-associated infections are mosquito borne (arboviruses-acronym for ARthropod-BOrne VIRUSES), such as dengue, yellow fever, Japanese encephalitis, Zika, and West Nile fever. Most diseases caused by flaviviruses are asymptomatic or manifest as self-limited, mild, undifferentiated febrile diseases. In a limited number of cases, these diseases may evolve to severe inflammatory, multisystem diseases, causing high morbidity and mortality. Some flaviviruses have been consistently identified in kidney tissue and urine and have been clinically associated with kidney diseases. In this review, we will provide an overview of the epidemiology, risk factors, kidney pathology, etiopathogenesis, and outcomes of acute and chronic kidney syndromes associated with dengue, yellow fever, Zika, and West Nile virus disease.
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Sanou AS, Dirlikov E, Sondo KA, Kagoné TS, Yameogo I, Sow HE, Adjami AG, Traore SM, Dicko A, Tinto B, Diendere EA, Ouedraogo-Konate SMWK, Kiemtore T, Kangoye DT, Sangare L, Dama ETH, Fuller JA, Major CG, Tosado-Acevedo R, Sharp TM, Koné RG, Bicaba BW. Building Laboratory-Based Arbovirus Sentinel Surveillance Capacity During an Ongoing Dengue Outbreak, Burkina Faso, 2017. Health Secur 2019; 16:S103-S110. [PMID: 30480496 DOI: 10.1089/hs.2018.0048] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
In West Africa, identification of nonmalarial acute febrile illness (AFI) etiologic pathogens is challenging, given limited epidemiologic surveillance and laboratory testing, including for AFI caused by arboviruses. Consequently, public health action to prevent, detect, and respond to outbreaks is constrained, as experienced during dengue outbreaks in several African countries. We describe the successful implementation of laboratory-based arbovirus sentinel surveillance during a dengue outbreak in Burkina Faso during fall 2017. We describe implementation, surveillance methods, and associated costs of enhanced surveillance during an outbreak response as an effort to build capacity to better understand the burden of disease caused by arboviruses in Burkina Faso. The system improved on existing routine surveillance through an improved case report form, systematic testing of specimens, and linking patient information with laboratory results through a data management system. Lessons learned will improve arbovirus surveillance in Burkina Faso and will contribute to enhancing global health security in the region. Elements critical to the success of this intervention include responding to a specific and urgent request by the government of Burkina Faso and building on existing systems and infrastructure already supported by CDC's global health security program.
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Affiliation(s)
- Anselme Simeon Sanou
- Anselme Simeon Sanou, MD, is Senior Surveillance Advisor, the Division for Global Health Protection/Burkina Faso Country Office, US Centers for Disease Control and Prevention , Ouagadougou, Burkina Faso
| | - Emilio Dirlikov
- Emilio Dirlikov, PhD, is Emergency Public Health Epidemiologist, Division for Global Health Protection/Emergency Recovery and Response Branch/Global Rapid Response Team, the US Centers for Disease Control and Prevention , Atlanta, Georgia
| | - Kongnimissom Apoline Sondo
- Kongnimissom Apoline Sondo, MD, is Head of the Service, Service of Infectious Diseases, the Centre Hospitalier Universitaire Yalgado Ouedraogo , Ouagadougou, Burkina Faso
| | - Thérèse Samdapawindé Kagoné
- Thérèse Samdapawindé Kagoné, PhD, is Head of the Viral Hemorrhagic Fever laboratory, the Laboratoire National de Référence des Fièvres Hémorragiques Virales , Centre Muraz, Bobo-Dioulasso, Burkina Faso
| | - Issaka Yameogo
- Issaka Yameogo, MD, is a Medical Epidemiologist, the Direction de la Protection de la Santé de la Population, Ministère de la Sante, Ouagadougou, Burkina Faso
| | - Hyacinthe Euvrard Sow
- Hyacinthe Euvrard Sow, MD, is a Medical Epidemiologist, the Direction de la Protection de la Santé de la Population, Ministère de la Sante, Ouagadougou, Burkina Faso
| | - Aimé Gilles Adjami
- Aimé Gilles Adjami, PhD, is a Biologist and Executive Director, DAVYCAS International , Ouagadougou, Burkina Faso
| | - Siriky Martin Traore
- Siriky Martin Traore, PharmD, is a Medical Biologist, the Direction de la Protection de la Santé de la Population, Ministère de la Sante, Ouagadougou, Burkina Faso
| | - Amadou Dicko
- Amadou Dicko, DVM, is a Researcher, the Laboratoire National de Référence des Fièvres Hémorragiques Virales , Centre Muraz, Bobo-Dioulasso, Burkina Faso
| | - Bachirou Tinto
- Bachirou Tinto, PharmD, is a Researcher, the Laboratoire National de Référence des Fièvres Hémorragiques Virales , Centre Muraz, Bobo-Dioulasso, Burkina Faso
| | - Eric Arnaud Diendere
- Eric Arnaud Diendere, MD, is Infectiologist, Service of Infectious Diseases, the Centre Hospitalier Universitaire Yalgado Ouedraogo , Ouagadougou, Burkina Faso
| | - Sonia Marie W K Ouedraogo-Konate
- Sonia Marie W. K. Ouedraogo-Konate, MD, is a Medical Epidemiologist, the Direction de la Protection de la Santé de la Population, Ministère de la Sante, Ouagadougou, Burkina Faso
| | - Tanga Kiemtore
- Tanga Kiemtore, is Data Manager, the Direction de la Protection de la Santé de la Population, Ministère de la Sante, Ouagadougou, Burkina Faso
| | - David Tiga Kangoye
- David Tiga Kangoye, MD, is an Immuno Epidemiologist, Head of the Department of Public Health, the Centre Hospitalier Universitaire Yalgado Ouedraogo , Ouagadougou, Burkina Faso
| | - Lassana Sangare
- Lassana Sangare, PhD, is Virologist, Head of the Department of laboratories, the Centre Hospitalier Universitaire Yalgado Ouedraogo , Ouagadougou, Burkina Faso
| | - Emilie T H Dama
- Emilie T. H. Dama, PhD, is Senior Laboratory Advisor, the Division for Global Health Protection/Burkina Faso Country Office, US Centers for Disease Control and Prevention , Ouagadougou, Burkina Faso
| | - James A Fuller
- James A. Fuller, PhD, is an Epidemiologist, Division for Global Health Protection/Global Disease Detection Operations Center, the US Centers for Disease Control and Prevention , Atlanta, Georgia
| | - Chelsea G Major
- Chelsea G. Major, MPH, is a Public Health Advisor, the National Center for Emerging and Zoonotic Infectious Diseases/Division of Vector-Borne Diseases/Dengue Branch, US Centers for Disease Control and Prevention , San Juan, Puerto Rico
| | - Rafael Tosado-Acevedo
- Rafael Tosado-Acevedo, PhD, is a Microbiologist, the National Center for Emerging and Zoonotic Infectious Diseases/Division of Vector-Borne Diseases/Dengue Branch, US Centers for Disease Control and Prevention , San Juan, Puerto Rico
| | - Tyler M Sharp
- Tyler M. Sharp, PhD, is an Epidemiologist, the National Center for Emerging and Zoonotic Infectious Diseases/Division of Vector-Borne Diseases/Dengue Branch, US Centers for Disease Control and Prevention , San Juan, Puerto Rico
| | - Rebecca Greco Koné
- Rebecca Greco Koné, MPH, is Country Director, the Division for Global Health Protection/Burkina Faso Country Office, US Centers for Disease Control and Prevention , Ouagadougou, Burkina Faso
| | - Brice Wilfried Bicaba
- Brice Wilfried Bicaba, MD, is Director, the Direction de la Protection de la Santé de la Population, Ministère de la Sante, Ouagadougou, Burkina Faso
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Epizootics due to Yellow Fever Virus in São Paulo State, Brazil: viral dissemination to new areas (2016-2017). Sci Rep 2019; 9:5474. [PMID: 30940867 PMCID: PMC6445104 DOI: 10.1038/s41598-019-41950-3] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 03/21/2019] [Indexed: 11/23/2022] Open
Abstract
Beginning in late 2016 Brazil faced the worst outbreak of Yellow Fever in recent decades, mainly located in southeastern rural regions of the country. In the present study we characterize the Yellow Fever Virus (YFV) associated with this outbreak in São Paulo State, Brazil. Blood or tissues collected from 430 dead monkeys and 1030 pools containing a total of 5,518 mosquitoes were tested for YFV by quantitative RT-PCR, immunohistochemistry (IHC) and indirect immunofluorescence. A total of 67 monkeys were YFV-positive and 3 pools yielded YFV following culture in a C6/36 cell line. Analysis of five nearly full length genomes of YFV from collected samples was consistent with evidence that the virus associated with the São Paulo outbreak originated in Minas Gerais. The phylogenetic analysis also showed that strains involved in the 2016–2017 outbreak in distinct Brazilian states (i.e., Minas Gerais, Rio de Janeiro, Espirito Santo) intermingled in maximum-likelihood and Bayesian trees. Conversely, the strains detected in São Paulo formed a monophyletic cluster, suggesting that they were local-adapted. The finding of YFV by RT-PCR in five Callithrix monkeys who were all YFV-negative by histopathology or immunohistochemistry suggests that this YFV lineage circulating in Sao Paulo is associated with different outcomes in Callithrix when compared to other monkeys.
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de Abreu FVS, Ribeiro IP, Ferreira-de-Brito A, dos Santos AAC, de Miranda RM, Bonelly IDS, Neves MSAS, Bersot MI, dos Santos TP, Gomes MQ, da Silva JL, Romano APM, Carvalho RG, Said RFDC, Ribeiro MS, Laperrière RDC, Fonseca EOL, Falqueto A, Paupy C, Failloux AB, Moutailler S, de Castro MG, Gómez MM, Motta MDA, Bonaldo MC, Lourenço-de-Oliveira R. Haemagogus leucocelaenus and Haemagogus janthinomys are the primary vectors in the major yellow fever outbreak in Brazil, 2016-2018. Emerg Microbes Infect 2019; 8:218-231. [PMID: 30866775 PMCID: PMC6455131 DOI: 10.1080/22221751.2019.1568180] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 12/27/2018] [Accepted: 01/01/2019] [Indexed: 12/12/2022]
Abstract
The yellow fever virus (YFV) caused a severe outbreak in Brazil in 2016-2018 that rapidly spread across the Atlantic Forest in its most populated region without viral circulation for almost 80 years. A comprehensive entomological survey combining analysis of distribution, abundance and YFV natural infection in mosquitoes captured before and during the outbreak was conducted in 44 municipalities of five Brazilian states. In total, 17,662 mosquitoes of 89 species were collected. Before evidence of virus circulation, mosquitoes were tested negative but traditional vectors were alarmingly detected in 82% of municipalities, revealing high receptivity to sylvatic transmission. During the outbreak, five species were found positive in 42% of municipalities. Haemagogus janthinomys and Hg. leucocelaenus are considered the primary vectors due to their large distribution combined with high abundance and natural infection rates, concurring together for the rapid spread and severity of this outbreak. Aedes taeniorhynchus was found infected for the first time, but like Sabethes chloropterus and Aedes scapularis, it appears to have a potential local or secondary role because of their low abundance, distribution and infection rates. There was no evidence of YFV transmission by Aedes albopictus and Aedes aegypti, although the former was the most widespread species across affected municipalities, presenting an important overlap between the niches of the sylvatic vectors and the anthropic ones. The definition of receptive areas, expansion of vaccination in the most affected age group and exposed populations and the adoption of universal vaccination to the entire Brazilian population need to be urgently implemented.
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Affiliation(s)
- Filipe Vieira Santos de Abreu
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
- Instituto Federal do Norte de Minas Gerais, Salinas, MG, Brazil
| | - Ieda Pereira Ribeiro
- Laboratório de Biologia Molecular de Flavivírus, Instituto Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - Anielly Ferreira-de-Brito
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | | | - Rafaella Moraes de Miranda
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - Iule de Souza Bonelly
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | | | - Maria Ignez Bersot
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | | | - Marcelo Quintela Gomes
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - José Luis da Silva
- Gerência de Estudos e Pesquisas em Antropozoonoses, Secretaria Estadual de Saúde, Rio de Janeiro, RJ, Brazil
| | - Alessandro Pecego Martins Romano
- Coordenação Geral de Vigilância das Doenças Transmissíveis, Departamento de Vigilância das Doenças Transmissíveis, Secretaria de Vigilância em Saúde, Ministério da Saúde, Brasília, DF, Brazil
| | - Roberta Gomes Carvalho
- Departamento de Saúde Ambiental e Saúde do Trabalhador, Secretaria de Vigilância em Saúde, Ministério da Saúde, Brasília, DF, Brazil
| | | | - Mario Sergio Ribeiro
- Superintendência de Vigilância Epidemiológica e Ambiental, Secretaria Estadual de Saúde, Rio de Janeiro, RJ, Brazil
| | - Roberto da Costa Laperrière
- Núcleo Especial de Vigilância Ambiental, Secretaria Estadual de Saúde do Espírito Santo, Vitória, ES, Brazil
| | | | | | - Christophe Paupy
- MIVEGEC Laboratory, IRD-CNRS Université de Montpellier, Montpellier, France
| | | | - Sara Moutailler
- UMR BIPAR, Animal Health Laboratory, ANSES, INRA, Ecole Nationale Vétérinaire d'Alfort, Université Paris-Est, Maisons-Alfort, France
| | - Marcia Gonçalves de Castro
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - Mariela Martínez Gómez
- Laboratório de Biologia Molecular de Flavivírus, Instituto Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | | | - Myrna Cristina Bonaldo
- Laboratório de Biologia Molecular de Flavivírus, Instituto Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
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Abstract
The global economic cost of Aedes-borne diseases, such as dengue, is estimated to be in the billions of dollars annually. In this scenario, a sustained vector control strategy is the only alternative to control dengue, as well as other diseases transmitted by Aedes, including Zika and chikungunya. The use of transgenic mosquitoes is a promising weapon in the improvement of approaches currently applied in Aedes aegypti control. Field trials using genetically modified mosquitoes for population control have been conducted and offer an excellent opportunity to evaluate what can be improved. In a mass-rearing mosquito facility, the absence of a transgenic line that produces male-only progeny is undoubtedly a limiting factor; thus, being able to manipulate sex determination in this species is a fundamental step for the success of this strategy. Likewise, the possibility of manipulation of the sex determination pathway opens-up a new opportunity for disease control.
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Affiliation(s)
| | - Bianca Burini Kojin
- Department of Entomology, Texas A & M University, Minnie Belle Heep Center, College Station, TX, USA
| | - Margareth Lara Capurro
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brasil.
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35
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Figueiredo PO, Silva ATS, Oliveira JS, Marinho PE, Rocha FT, Domingos GP, Poblete PCP, Oliveira LBS, Duarte DC, Bonjardim CA, Abrahão JS, Kroon EG, Drumond BP, Oliveira DB, Trindade GS. Detection and Molecular Characterization of Yellow Fever Virus, 2017, Brazil. ECOHEALTH 2018; 15:864-870. [PMID: 30117000 DOI: 10.1007/s10393-018-1364-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Revised: 06/12/2018] [Accepted: 07/05/2018] [Indexed: 06/08/2023]
Abstract
At the end of 2016, Brazil experienced an unprecedented yellow fever (YF) outbreak. Clinical, molecular and ecological aspects of human and non-human primate (NHP) samples collected at the beginning of the outbreak are described in this study. Spatial distribution analyses demonstrated a strong overlap between human and NHP cases. Through molecular analyses, we showed that the outbreak had a sylvatic origin, caused by the South American genotype 1 YFV, which has already been shown to circulate in Brazil. As expected, the clusters of cases were identified in regions with a low vaccination coverage. Our findings highlight the importance of the synchronization of animal surveillance and health services to identify emerging YF cases, thereby promoting a better response to the vulnerable population.
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Affiliation(s)
- P O Figueiredo
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Campus Pampulha, Belo Horizonte, Minas Gerais, CEP: 31270-901, Brazil.
| | - A T S Silva
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Campus Pampulha, Belo Horizonte, Minas Gerais, CEP: 31270-901, Brazil
| | - J S Oliveira
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Campus Pampulha, Belo Horizonte, Minas Gerais, CEP: 31270-901, Brazil
| | - P E Marinho
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Campus Pampulha, Belo Horizonte, Minas Gerais, CEP: 31270-901, Brazil
| | - F T Rocha
- Centro Integrado de Pesquisa em Saúde, Faculdade de Medicina, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Campus JK - Rodovia MGT 367 - KM 583, N° 5000, Diamantina, MG, CEP 39.100-000, Brazil
| | - G P Domingos
- Centro Integrado de Pesquisa em Saúde, Faculdade de Medicina, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Campus JK - Rodovia MGT 367 - KM 583, N° 5000, Diamantina, MG, CEP 39.100-000, Brazil
| | - P C P Poblete
- Zoovet Consultoria LTDA, Avenida Amazonas, 2474, Belo Horizonte, Minas Gerais, 30180-001, Brazil
| | - L B S Oliveira
- Pontifical Catholic University of Minas Gerais, Rua Dom José Gaspar, 702, Belo Horizonte, Minas Gerais, 30535-000, Brazil
| | - D C Duarte
- Zoovet Consultoria LTDA, Avenida Amazonas, 2474, Belo Horizonte, Minas Gerais, 30180-001, Brazil
| | - C A Bonjardim
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Campus Pampulha, Belo Horizonte, Minas Gerais, CEP: 31270-901, Brazil
| | - J S Abrahão
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Campus Pampulha, Belo Horizonte, Minas Gerais, CEP: 31270-901, Brazil
| | - E G Kroon
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Campus Pampulha, Belo Horizonte, Minas Gerais, CEP: 31270-901, Brazil
| | - B P Drumond
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Campus Pampulha, Belo Horizonte, Minas Gerais, CEP: 31270-901, Brazil
| | - D B Oliveira
- Centro Integrado de Pesquisa em Saúde, Faculdade de Medicina, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Campus JK - Rodovia MGT 367 - KM 583, N° 5000, Diamantina, MG, CEP 39.100-000, Brazil
| | - G S Trindade
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Campus Pampulha, Belo Horizonte, Minas Gerais, CEP: 31270-901, Brazil.
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36
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Status of the northern muriqui (Brachyteles hypoxanthus) in the time of yellow fever. Primates 2018; 60:21-28. [DOI: 10.1007/s10329-018-0701-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 11/11/2018] [Indexed: 01/27/2023]
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37
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Possas C, Lourenço-de-Oliveira R, Tauil PL, Pinheiro FDP, Pissinatti A, da Cunha RV, Freire M, Martins RM, Homma A. Yellow fever outbreak in Brazil: the puzzle of rapid viral spread and challenges for immunisation. Mem Inst Oswaldo Cruz 2018; 113:e180278. [PMID: 30427974 PMCID: PMC6135548 DOI: 10.1590/0074-02760180278] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 08/16/2018] [Indexed: 01/31/2023] Open
Abstract
We discuss the complex eco-social factors involved in the puzzle of the unexpected rapid viral spread in the ongoing Brazilian yellow fever (YF) outbreak, which has increased the reurbanisation risk of a disease without urban cases in Brazil since 1942. Indeed, this rapid spatial viral dissemination to the Southeast and South regions, now circulating in the Atlantic Forest fragments close to peri-urban areas of the main Brazilian megalopolises (São Paulo and Rio de Janeiro) has led to an exponential increase in the number of yellow fever cases. In less than 18 months, 1,833 confirmed cases and 578 deaths were recorded most of them reported in the Southeast region (99,9%). Large epizooties in monkeys and other non-human primates (NHPs) were communicated in the country with 732 YF virus (YFV) laboratory confirmed events only in the 2017/2018 monitoring period. We also discuss the peculiarities and similarities of the current outbreak when compared with previous great epidemics, examining several hypotheses to explain the recent unexpected acceleration of epizootic waves in the sylvatic cycle of the YFV together with the role of human, NHPs and mosquito mobility with respect to viral spread. We conclude that the most feasible hypothesis to explain this rapidity would be related to human behavior combined with ecological changes that promoted a significant increase in mosquito and NHP densities and their contacts with humans. We emphasize the urgent need for an adequate response to this outbreak such as extending immunisation coverage to the whole Brazilian population and developing novel strategies for immunisation of NHPs confined in selected reserve areas and zoos. Finally, we stress the urgent need to improve the quality of response in order to prevent future outbreaks and a catastrophic reurbanisation of the disease in Brazil and other South American countries. Continuous monitoring of YFV receptivity and vulnerability conditions with effective control of the urban vector Aedes aegypti and significant investments in YF vaccine production capacity and research and development for reduction of adverse effects are of the highest priority.
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Affiliation(s)
- Cristina Possas
- Fundação Oswaldo Cruz-Fiocruz, Bio-Manguinhos, Rio de Janeiro, RJ, Brasil
| | | | - Pedro Luiz Tauil
- Universidade de Brasília, Faculdade de Medicina, Brasília, DF, Brasil
| | | | - Alcides Pissinatti
- Centro de Primatologia do Rio de Janeiro, Instituto Estadual do Ambiente, Guapimirim, RJ, Brasil
| | | | - Marcos Freire
- Fundação Oswaldo Cruz-Fiocruz, Bio-Manguinhos, Rio de Janeiro, RJ, Brasil
| | | | - Akira Homma
- Fundação Oswaldo Cruz-Fiocruz, Bio-Manguinhos, Rio de Janeiro, RJ, Brasil
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38
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Faria NR, Kraemer MUG, Hill SC, Goes de Jesus J, Aguiar RS, Iani FCM, Xavier J, Quick J, du Plessis L, Dellicour S, Thézé J, Carvalho RDO, Baele G, Wu CH, Silveira PP, Arruda MB, Pereira MA, Pereira GC, Lourenço J, Obolski U, Abade L, Vasylyeva TI, Giovanetti M, Yi D, Weiss DJ, Wint GRW, Shearer FM, Funk S, Nikolay B, Fonseca V, Adelino TER, Oliveira MAA, Silva MVF, Sacchetto L, Figueiredo PO, Rezende IM, Mello EM, Said RFC, Santos DA, Ferraz ML, Brito MG, Santana LF, Menezes MT, Brindeiro RM, Tanuri A, Dos Santos FCP, Cunha MS, Nogueira JS, Rocco IM, da Costa AC, Komninakis SCV, Azevedo V, Chieppe AO, Araujo ESM, Mendonça MCL, Dos Santos CC, Dos Santos CD, Mares-Guia AM, Nogueira RMR, Sequeira PC, Abreu RG, Garcia MHO, Abreu AL, Okumoto O, Kroon EG, de Albuquerque CFC, Lewandowski K, Pullan ST, Carroll M, de Oliveira T, Sabino EC, Souza RP, Suchard MA, Lemey P, Trindade GS, Drumond BP, Filippis AMB, Loman NJ, Cauchemez S, Alcantara LCJ, Pybus OG. Genomic and epidemiological monitoring of yellow fever virus transmission potential. Science 2018; 361:894-899. [PMID: 30139911 PMCID: PMC6874500 DOI: 10.1126/science.aat7115] [Citation(s) in RCA: 208] [Impact Index Per Article: 34.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Accepted: 07/20/2018] [Indexed: 12/21/2022]
Abstract
The yellow fever virus (YFV) epidemic in Brazil is the largest in decades. The recent discovery of YFV in Brazilian Aedes species mosquitos highlights a need to monitor the risk of reestablishment of urban YFV transmission in the Americas. We use a suite of epidemiological, spatial, and genomic approaches to characterize YFV transmission. We show that the age and sex distribution of human cases is characteristic of sylvatic transmission. Analysis of YFV cases combined with genomes generated locally reveals an early phase of sylvatic YFV transmission and spatial expansion toward previously YFV-free areas, followed by a rise in viral spillover to humans in late 2016. Our results establish a framework for monitoring YFV transmission in real time that will contribute to a global strategy to eliminate future YFV epidemics.
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Affiliation(s)
- N R Faria
- Department of Zoology, University of Oxford, Oxford, UK.
| | - M U G Kraemer
- Department of Zoology, University of Oxford, Oxford, UK
- Computational Epidemiology Lab, Boston Children's Hospital, Boston, MA, USA
- Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | - S C Hill
- Department of Zoology, University of Oxford, Oxford, UK
| | - J Goes de Jesus
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | - R S Aguiar
- Laboratório de Virologia Molecular, Departamento de Genética, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - F C M Iani
- Laboratório Central de Saúde Pública, Instituto Octávio Magalhães, FUNED, Belo Horizonte, Minas Gerais, Brazil
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - J Xavier
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | - J Quick
- Institute of Microbiology and Infection, University of Birmingham, Birmingham, UK
| | - L du Plessis
- Department of Zoology, University of Oxford, Oxford, UK
| | - S Dellicour
- Department of Microbiology and Immunology, Rega Institute, KU Leuven, Leuven, Belgium
| | - J Thézé
- Department of Zoology, University of Oxford, Oxford, UK
| | - R D O Carvalho
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - G Baele
- Department of Microbiology and Immunology, Rega Institute, KU Leuven, Leuven, Belgium
| | - C-H Wu
- Department of Statistics, University of Oxford, Oxford, UK
| | - P P Silveira
- Laboratório de Virologia Molecular, Departamento de Genética, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - M B Arruda
- Laboratório de Virologia Molecular, Departamento de Genética, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - M A Pereira
- Laboratório Central de Saúde Pública, Instituto Octávio Magalhães, FUNED, Belo Horizonte, Minas Gerais, Brazil
| | - G C Pereira
- Laboratório Central de Saúde Pública, Instituto Octávio Magalhães, FUNED, Belo Horizonte, Minas Gerais, Brazil
| | - J Lourenço
- Department of Zoology, University of Oxford, Oxford, UK
| | - U Obolski
- Department of Zoology, University of Oxford, Oxford, UK
| | - L Abade
- Department of Zoology, University of Oxford, Oxford, UK
- The Global Health Network, University of Oxford, Oxford, UK
| | - T I Vasylyeva
- Department of Zoology, University of Oxford, Oxford, UK
| | - M Giovanetti
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - D Yi
- Department of Statistics, Harvard University, Cambridge, MA, USA
| | - D J Weiss
- Malaria Atlas Project, Big Data Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - G R W Wint
- Department of Zoology, University of Oxford, Oxford, UK
| | - F M Shearer
- Malaria Atlas Project, Big Data Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - S Funk
- Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
| | - B Nikolay
- Mathematical Modelling of Infectious Diseases and Center of Bioinformatics, Institut Pasteur, Paris, France
- CNRS UMR2000: Génomique Évolutive, Modélisation et Santé, Institut Pasteur, Paris, France
| | - V Fonseca
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
- KwaZulu-Natal Research, Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - T E R Adelino
- Laboratório Central de Saúde Pública, Instituto Octávio Magalhães, FUNED, Belo Horizonte, Minas Gerais, Brazil
| | - M A A Oliveira
- Laboratório Central de Saúde Pública, Instituto Octávio Magalhães, FUNED, Belo Horizonte, Minas Gerais, Brazil
| | - M V F Silva
- Laboratório Central de Saúde Pública, Instituto Octávio Magalhães, FUNED, Belo Horizonte, Minas Gerais, Brazil
| | - L Sacchetto
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - P O Figueiredo
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - I M Rezende
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - E M Mello
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - R F C Said
- Secretaria de Estado de Saúde de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - D A Santos
- Secretaria de Estado de Saúde de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - M L Ferraz
- Secretaria de Estado de Saúde de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - M G Brito
- Secretaria de Estado de Saúde de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - L F Santana
- Secretaria de Estado de Saúde de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - M T Menezes
- Laboratório de Virologia Molecular, Departamento de Genética, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - R M Brindeiro
- Laboratório de Virologia Molecular, Departamento de Genética, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - A Tanuri
- Laboratório de Virologia Molecular, Departamento de Genética, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - F C P Dos Santos
- Núcleo de Doenças de Transmissão Vetorial, Instituto Adolfo Lutz, São Paulo, Brazil
| | - M S Cunha
- Núcleo de Doenças de Transmissão Vetorial, Instituto Adolfo Lutz, São Paulo, Brazil
| | - J S Nogueira
- Núcleo de Doenças de Transmissão Vetorial, Instituto Adolfo Lutz, São Paulo, Brazil
| | - I M Rocco
- Núcleo de Doenças de Transmissão Vetorial, Instituto Adolfo Lutz, São Paulo, Brazil
| | - A C da Costa
- Instituto de Medicina Tropical e Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - S C V Komninakis
- Retrovirology Laboratory, Federal University of São Paulo, São Paulo, Brazil
- School of Medicine of ABC (FMABC), Clinical Immunology Laboratory, Santo André, São Paulo, Brazil
| | - V Azevedo
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - A O Chieppe
- Coordenação de Vigilância Epidemiológica do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - E S M Araujo
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | - M C L Mendonça
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | - C C Dos Santos
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | - C D Dos Santos
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | - A M Mares-Guia
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | - R M R Nogueira
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | - P C Sequeira
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | - R G Abreu
- Departamento de Vigilância das Doenças Transmissíveis da Secretaria de Vigilância em Saúde, Ministério da Saúde, Brasília-DF, Brazil
| | - M H O Garcia
- Departamento de Vigilância das Doenças Transmissíveis da Secretaria de Vigilância em Saúde, Ministério da Saúde, Brasília-DF, Brazil
| | - A L Abreu
- Secretaria de Vigilância em Saúde, Coordenação Geral de Laboratórios de Saúde Pública, Ministério da Saúde, Brasília-DF, Brazil
| | - O Okumoto
- Secretaria de Vigilância em Saúde, Coordenação Geral de Laboratórios de Saúde Pública, Ministério da Saúde, Brasília-DF, Brazil
| | - E G Kroon
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - C F C de Albuquerque
- Organização Pan - Americana da Saúde/Organização Mundial da Saúde - (OPAS/OMS), Brasília-DF, Brazil
| | - K Lewandowski
- Public Health England, National Infections Service, Porton Down, Salisbury, UK
| | - S T Pullan
- Public Health England, National Infections Service, Porton Down, Salisbury, UK
| | - M Carroll
- NIHR HPRU in Emerging and Zoonotic Infections, Public Health England, London, UK
| | - T de Oliveira
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
- KwaZulu-Natal Research, Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Durban, South Africa
| | - E C Sabino
- Instituto de Medicina Tropical e Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - R P Souza
- Núcleo de Doenças de Transmissão Vetorial, Instituto Adolfo Lutz, São Paulo, Brazil
| | - M A Suchard
- Department of Biostatistics, UCLA Fielding School of Public Health, University of California, Los Angeles, CA, USA
- Department of Biomathematics and Human Genetics, David Geffen School of Medicine at UCLA, University of California, Los Angeles, CA, USA
| | - P Lemey
- Department of Microbiology and Immunology, Rega Institute, KU Leuven, Leuven, Belgium
| | - G S Trindade
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - B P Drumond
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - A M B Filippis
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil
| | - N J Loman
- Institute of Microbiology and Infection, University of Birmingham, Birmingham, UK
| | - S Cauchemez
- Mathematical Modelling of Infectious Diseases and Center of Bioinformatics, Institut Pasteur, Paris, France
- CNRS UMR2000: Génomique Évolutive, Modélisation et Santé, Institut Pasteur, Paris, France
| | - L C J Alcantara
- Laboratório de Flavivírus, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, Brazil.
- Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - O G Pybus
- Department of Zoology, University of Oxford, Oxford, UK.
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Zanotto PMDA, Leite LCDC. The Challenges Imposed by Dengue, Zika, and Chikungunya to Brazil. Front Immunol 2018; 9:1964. [PMID: 30210503 PMCID: PMC6121005 DOI: 10.3389/fimmu.2018.01964] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 08/09/2018] [Indexed: 12/14/2022] Open
Abstract
Brazil has a well-established immunization program in which vaccines are provided through the Public Health System free of charge to the whole population, obtaining high coverage and reducing the incidence of important infectious diseases in children and adults. However, the environmental changes and high mobility rates of the population occurring in the last decades have triggered the sequential introduction of a series of vector-borne emerging infectious diseases, such as Dengue, Zika, and Chikungunya, that have imposed a considerable burden on the population, with yet unmet solutions. The first to be introduced in Brazil was the Dengue virus, reaching epidemic levels in 2010, with over 1 million cases annually, maintaining high infection rates until 2016. Brazil has invested in vaccine development. The Zika virus infection, initially assumed to have appeared during the World Cup in 2014, was later shown to have arrived earlier in 2013. Its emergence mobilized the Brazilian scientific community to define priorities and strategies, that rapidly investigated mechanisms of pathogenesis, differential diagnostics, and determined that Zika virus infection per se causes relatively mild symptoms, however, in pregnant women can cause microcephaly in the newborns. The diagnostics of Zika infection is confusing given its similar symptoms and cross-reactivity with Dengue, which also hindered the appraisal of the extent of the epidemics, which peaked in 2015 and finished in 2016. Another complicating factor was the overlap with Chikungunya virus infection, which arrived in Brazil in 2014, being prevalent in the same regions, with similar symptoms to both Dengue and Zika. Although Dengue infection can be fatal and Zika infection in pregnant woman can lead to newborns with microcephaly or an array of neurodegenerative manifestations, the Chikungunya infection is a debilitating disease leaving chronic sequelae, which unfortunately has received less attention. Precise differential diagnostics of Dengue, Zika, and Chikungunya will be necessary to evaluate the actual extent of each of these diseases during this overlapping period. Here we review the impact of these emerging infections on public health and how the scientific community was mobilized to deal with them in Brazil.
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40
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Chippaux JP, Chippaux A. Yellow fever in Africa and the Americas: a historical and epidemiological perspective. J Venom Anim Toxins Incl Trop Dis 2018; 24:20. [PMID: 30158957 PMCID: PMC6109282 DOI: 10.1186/s40409-018-0162-y] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 08/14/2018] [Indexed: 11/30/2022] Open
Abstract
Yellow fever was transported during the slave trade in the 15th and 16th centuries from Africa to the Americas where the virus encountered favorable ecological conditions that allowed creation of a sustainable sylvatic cycle. Despite effective vector control and immunization programs for nearly a century, yellow fever epidemics reemerged in many Latin American countries, particularly Brazil. The emergence or reemergence of vector-borne diseases encompasses many intricate factors. Yellow fever outbreaks occur if at least three conditions are fulfilled: the introduction of the virus into a non-immune human community, presence of competent and anthropophilic vectors and insufficiency of prevention and/or adequate management of the growing outbreak. On the other hand, two weapons are available to constrain yellow fever: vector control and immunization. In contrast, yellow fever is absent from Asia and the Pacific despite the presence of the vector and the susceptibility of human populations to the virus. Based on a review of the global history of yellow fever and its epidemiology, the authors deliver some recommendations for improving the prevention of epidemics.
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Affiliation(s)
- Jean-Philippe Chippaux
- UMR216, Mother and child facing tropical diseases, PRES Sorbonne Paris Cité, Université Paris Descartes, Faculté de Pharmacie, Paris, France
- Centre de Recherche Translationnelle, Institut Pasteur, 28 rue du Dr Roux, 75015 Paris, France
| | - Alain Chippaux
- Société de Pathologie Exotique, Hôpital Salpêtrière, BP50082, 75622 Paris cedex 13; 18 rue Princesse, 75006 Paris, France
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41
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Klitting R, Fischer C, Drexler JF, Gould EA, Roiz D, Paupy C, de Lamballerie X. What Does the Future Hold for Yellow Fever Virus? (II). Genes (Basel) 2018; 9:E425. [PMID: 30134625 PMCID: PMC6162518 DOI: 10.3390/genes9090425] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 08/13/2018] [Accepted: 08/16/2018] [Indexed: 02/06/2023] Open
Abstract
As revealed by the recent resurgence of yellow fever virus (YFV) activity in the tropical regions of Africa and South America, YFV control measures need urgent rethinking. Over the last decade, most reported outbreaks occurred in, or eventually reached, areas with low vaccination coverage but that are suitable for virus transmission, with an unprecedented risk of expansion to densely populated territories in Africa, South America and Asia. As reflected in the World Health Organization's initiative launched in 2017, it is high time to strengthen epidemiological surveillance to monitor accurately viral dissemination, and redefine vaccination recommendation areas. Vector-control and immunisation measures need to be adapted and vaccine manufacturing must be reconciled with an increasing demand. We will have to face more yellow fever (YF) cases in the upcoming years. Hence, improving disease management through the development of efficient treatments will prove most beneficial. Undoubtedly, these developments will require in-depth descriptions of YFV biology at molecular, physiological and ecological levels. This second section of a two-part review describes the current state of knowledge and gaps regarding the molecular biology of YFV, along with an overview of the tools that can be used to manage the disease at the individual, local and global levels.
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Affiliation(s)
- Raphaëlle Klitting
- Unité des Virus Émergents (UVE: Aix-Marseille Univ⁻IRD 190⁻Inserm 1207⁻IHU Méditerranée Infection), 13385 Marseille CEDEX 05, France.
| | - Carlo Fischer
- Charité-Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Virology, 10117 Berlin, Germany.
- German Center for Infection Research (DZIF), 38124 Braunschweig, Germany.
| | - Jan F Drexler
- Charité-Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Virology, 10117 Berlin, Germany.
- German Center for Infection Research (DZIF), 38124 Braunschweig, Germany.
- Martsinovsky Institute of Medical Parasitology, Tropical and Vector Borne Diseases, Sechenov University, 119991 Moscow, Russia.
| | - Ernest A Gould
- Unité des Virus Émergents (UVE: Aix-Marseille Univ⁻IRD 190⁻Inserm 1207⁻IHU Méditerranée Infection), 13385 Marseille CEDEX 05, France.
| | - David Roiz
- UMR Maladies Infectieuses et Vecteurs: Écologie, Génétique Évolution et Contrôle (MIVEGEC: IRD, CNRS, Univ. Montpellier), 34394 Montpellier, France.
| | - Christophe Paupy
- UMR Maladies Infectieuses et Vecteurs: Écologie, Génétique Évolution et Contrôle (MIVEGEC: IRD, CNRS, Univ. Montpellier), 34394 Montpellier, France.
| | - Xavier de Lamballerie
- Unité des Virus Émergents (UVE: Aix-Marseille Univ⁻IRD 190⁻Inserm 1207⁻IHU Méditerranée Infection), 13385 Marseille CEDEX 05, France.
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Karna AK, Azar SR, Plante JA, Yun R, Vasilakis N, Weaver SC, Hansen IA, Hanley KA. Colonized Sabethes cyaneus, a Sylvatic New World Mosquito Species, Shows a Low Vector Competence for Zika Virus Relative to Aedes aegypti. Viruses 2018; 10:E434. [PMID: 30115888 PMCID: PMC6116206 DOI: 10.3390/v10080434] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 08/06/2018] [Accepted: 08/14/2018] [Indexed: 02/02/2023] Open
Abstract
The introduction of Zika virus (ZIKV) to the Americas raised concern that the virus would spill back from human transmission, perpetuated by Aedes aegypti, into a sylvatic cycle maintained in wildlife and forest-living mosquitoes. In the Americas, Sabethes species are vectors of sylvatic yellow fever virus (YFV) and are therefore candidate vectors of a sylvatic ZIKV cycle. To test the potential of Sabethes cyaneus to transmit ZIKV, Sa. cyaneus and Ae. aegypti were fed on A129 mice one or two days post-infection (dpi) with a ZIKV isolate from Mexico. Sa. cyaneus were sampled at 3, 4, 5, 7, 14, and 21 days post-feeding (dpf) and Ae. aegypti were sampled at 14 and 21 dpf. ZIKV was quantified in mosquito bodies, legs, and saliva to measure infection, dissemination, and potential transmission, respectively. Of 69 Sa. cyaneus that fed, ZIKV was detected in only one, in all body compartments, at 21 dpf. In contrast, at 14 dpf 100% of 20 Ae. aegypti that fed on mice at 2 dpi were infected and 70% had virus in saliva. These data demonstrate that Sa. cyaneus is a competent vector for ZIKV, albeit much less competent than Ae. aegypti.
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Affiliation(s)
- Ajit K Karna
- Department of Biology, New Mexico State University, Las Cruces, NM 88003, USA.
| | - Sasha R Azar
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA.
- Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX 77555, USA.
- Institute for Translational Sciences, University of Texas Medical Branch, Galveston, TX 77555, USA.
| | - Jessica A Plante
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA.
| | - Rumei Yun
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA.
- Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX 77555, USA.
| | - Nikos Vasilakis
- Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA.
- Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX 77555, USA.
- Center for Biodefense and Emerging Infectious Diseases, University of Texas Medical Branch, Galveston, TX 77555, USA.
- Institute for Translational Sciences, University of Texas Medical Branch, Galveston, TX 77555, USA.
- Center for Tropical Diseases, University of Texas Medical Branch, Galveston, TX 77555, USA.
| | - Scott C Weaver
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX 77555, USA.
- Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555, USA.
- Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX 77555, USA.
- Center for Biodefense and Emerging Infectious Diseases, University of Texas Medical Branch, Galveston, TX 77555, USA.
- Institute for Translational Sciences, University of Texas Medical Branch, Galveston, TX 77555, USA.
- Center for Tropical Diseases, University of Texas Medical Branch, Galveston, TX 77555, USA.
| | - Immo A Hansen
- Department of Biology, New Mexico State University, Las Cruces, NM 88003, USA.
| | - Kathryn A Hanley
- Department of Biology, New Mexico State University, Las Cruces, NM 88003, USA.
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Sakamoto Y, Yamaguchi T, Yamamoto N, Nishiura H. Modeling the elevated risk of yellow fever among travelers visiting Brazil, 2018. Theor Biol Med Model 2018; 15:9. [PMID: 29961429 PMCID: PMC6027565 DOI: 10.1186/s12976-018-0081-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 06/11/2018] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Unlike the epidemic of yellow fever from 2016 to 17 in Brazil mostly restricted to the States of Minas Gerais and Espirito Santo, the epidemic from 2017 to 18 mainly involved São Paulo and Rio de Janeiro and resulted in multiple international disseminations. To understand mechanisms behind this observation, the present study analyzed the distribution of imported cases from Brazil, 2018. METHODS A statistical model was employed to capture the risk of importing yellow fever by returning international travelers from Brazil. We estimated the relative risk of importation among travelers by the extent of wealth measured by GDP per capita and the relative risk obtained by random assignment of travelers' destination within Brazil by the relative population size. RESULTS Upper-half wealthier countries had 2.1 to 3.4 times greater risk of importation than remainders. Even among countries with lower half of GDP per capita, the risk of importation was 2.5 to 2.8 times greater than assuming that the risk of travelers' infection within Brazil is determined by the regional population size. CONCLUSIONS Travelers from wealthier countries were at elevated risk of yellow fever, allowing us to speculate that travelers' local destination and behavior at high risk of infection are likely to act as a key determinant of the heterogeneous risk of importation. It is advised to inform travelers over the ongoing geographic foci of transmission, and if it appears unavoidable to visit tourist destination that has the history of producing imported cases, travelers must be strongly advised to receive vaccination in advance.
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Affiliation(s)
- Yohei Sakamoto
- Graduate School of Medicine, Hokkaido University, Kita 15 Jo Nishi 7 Chome, Kita-ku, Sapporo-shi, Hokkaido 060-8638 Japan
- CREST, Japan Science and Technology Agency, Honcho 4-1-8, Kawaguchi, Saitama, 332-0012 Japan
| | - Takayuki Yamaguchi
- Graduate School of Medicine, Hokkaido University, Kita 15 Jo Nishi 7 Chome, Kita-ku, Sapporo-shi, Hokkaido 060-8638 Japan
- CREST, Japan Science and Technology Agency, Honcho 4-1-8, Kawaguchi, Saitama, 332-0012 Japan
| | - Nao Yamamoto
- Graduate School of Medicine, Hokkaido University, Kita 15 Jo Nishi 7 Chome, Kita-ku, Sapporo-shi, Hokkaido 060-8638 Japan
- CREST, Japan Science and Technology Agency, Honcho 4-1-8, Kawaguchi, Saitama, 332-0012 Japan
| | - Hiroshi Nishiura
- Graduate School of Medicine, Hokkaido University, Kita 15 Jo Nishi 7 Chome, Kita-ku, Sapporo-shi, Hokkaido 060-8638 Japan
- CREST, Japan Science and Technology Agency, Honcho 4-1-8, Kawaguchi, Saitama, 332-0012 Japan
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Klitting R, Gould EA, Paupy C, de Lamballerie X. What Does the Future Hold for Yellow Fever Virus? (I). Genes (Basel) 2018; 9:E291. [PMID: 29890711 PMCID: PMC6027470 DOI: 10.3390/genes9060291] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 06/04/2018] [Accepted: 06/06/2018] [Indexed: 01/14/2023] Open
Abstract
The recent resurgence of yellow fever virus (YFV) activity in the tropical regions of Africa and South America has sparked renewed interest in this infamous arboviral disease. Yellow fever virus had been a human plague for centuries prior to the identification of its urban transmission vector, the Aedes (Stegomyia) aegypti (Linnaeus) mosquito species, and the development of an efficient live-attenuated vaccine, the YF-17D strain. The combination of vector-control measures and vaccination campaigns drastically reduced YFV incidence in humans on many occasions, but the virus never ceased to circulate in the forest, through its sylvatic invertebrate vector(s) and vertebrate host(s). Outbreaks recently reported in Central Africa (2015⁻2016) and Brazil (since late 2016), reached considerable proportions in terms of spatial distribution and total numbers of cases, with multiple exports, including to China. In turn, questions about the likeliness of occurrence of large urban YFV outbreaks in the Americas or of a successful import of YFV to Asia are currently resurfacing. This two-part review describes the current state of knowledge and gaps regarding the molecular biology and transmission dynamics of YFV, along with an overview of the tools that can be used to manage the disease at individual, local and global levels.
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Affiliation(s)
- Raphaëlle Klitting
- Unité des Virus Émergents (UVE: Aix-Marseille Université, IRD 190, Inserm 1207, IHU Méditerranée Infection), 13385 Marseille Cedex 05, France.
| | - Ernest A Gould
- Unité des Virus Émergents (UVE: Aix-Marseille Université, IRD 190, Inserm 1207, IHU Méditerranée Infection), 13385 Marseille Cedex 05, France.
| | - Christophe Paupy
- UMR Maladies Infectieuses et Vecteurs: Écologie, Génétique Évolution et Contrôle (MIVEGEC: IRD, CNRS, Université Montpellier), 34394 Montpellier, France.
| | - Xavier de Lamballerie
- Unité des Virus Émergents (UVE: Aix-Marseille Université, IRD 190, Inserm 1207, IHU Méditerranée Infection), 13385 Marseille Cedex 05, France.
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