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Prado AF, Prist PR, Mucci LF, de Freitas PD. Ecological Requirements for Abundance and Dispersion of Brazilian Yellow Fever Vectors in Tropical Areas. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2024; 21:609. [PMID: 38791823 PMCID: PMC11120827 DOI: 10.3390/ijerph21050609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 05/01/2024] [Accepted: 05/08/2024] [Indexed: 05/26/2024]
Abstract
In the Americas, wild yellow fever (WYF) is an infectious disease that is highly lethal for some non-human primate species and non-vaccinated people. Specifically, in the Brazilian Atlantic Forest, Haemagogus leucocelaenus and Haemagogus janthinomys mosquitoes act as the major vectors. Despite transmission risk being related to vector densities, little is known about how landscape structure affects vector abundance and movement. To fill these gaps, we used vector abundance data and a model-selection approach to assess how landscape structure affects vector abundance, aiming to identify connecting elements for virus dispersion in the state of São Paulo, Brazil. Our findings show that Hg. leucocelaenus and Hg. janthinomys abundances, in highly degraded and fragmented landscapes, are mainly affected by increases in forest cover at scales of 2.0 and 2.5 km, respectively. Fragmented landscapes provide ecological corridors for vector dispersion, which, along with high vector abundance, promotes the creation of risk areas for WYF virus spread, especially along the border with Minas Gerais state, the upper edges of the Serra do Mar, in the Serra da Cantareira, and in areas of the metropolitan regions of São Paulo and Campinas.
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Affiliation(s)
- Amanda Francisco Prado
- Department of Genetics and Evolution, Center for Biological and Health Sciences, Federal University of São Carlos, Rodovia Washington Luis km 235, São Carlos 13565-905, SP, Brazil;
| | | | - Luis Filipe Mucci
- Taubaté Regional Lab., State Department of Health of São Paulo, Instituto Pasteur, Pça. Coronel Vitoriano, 23, Taubate 12020-020, SP, Brazil;
| | - Patrícia Domingues de Freitas
- Department of Genetics and Evolution, Center for Biological and Health Sciences, Federal University of São Carlos, Rodovia Washington Luis km 235, São Carlos 13565-905, SP, Brazil;
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2
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Wilk-da-Silva R, Medeiros-Sousa AR, Mucci LF, Alonso DP, Alvarez MVN, Ribolla PEM, Marrelli MT. Genetic Structuring of One of the Main Vectors of Sylvatic Yellow Fever: Haemagogus ( Conopostegus) leucocelaenus (Diptera: Culicidae). Genes (Basel) 2023; 14:1671. [PMID: 37761811 PMCID: PMC10531017 DOI: 10.3390/genes14091671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/18/2023] [Accepted: 08/22/2023] [Indexed: 09/29/2023] Open
Abstract
Genetic diversity and population structuring for the species Haemogogus leucocelaenus, a sylvatic vector of yellow fever virus, were found to vary with the degree of agricultural land use and isolation of fragments of Atlantic Forest in municipalities in the state of São Paulo where specimens were collected. Genotyping of 115 mitochondrial SNPs showed that the populations with the highest indices of genetic diversity (polymorphic loci and mean pairwise differences between the sequences) are found in areas with high levels of agricultural land use (northeast of the State). Most populations exhibited statistically significant negative values for the Tajima D and Fu FS neutrality tests, suggesting recent expansion. The results show an association between genetic diversity in this species and the degree of agricultural land use in the sampled sites, as well as signs of population expansion of this species in most areas, particularly those with the highest forest edge densities. A clear association between population structuring and the distance between the sampled fragments (isolation by distance) was observed: samples from a large fragment of Atlantic Forest extending along the coast of the state of São Paulo exhibited greater similarity with each other than with populations in the northwest of the state.
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Affiliation(s)
- Ramon Wilk-da-Silva
- Institute of Tropical Medicine, University of São Paulo, São Paulo 05403-000, Brazil
| | - Antônio Ralph Medeiros-Sousa
- Department of Epidemiology, School of Public Health, University of São Paulo, São Paulo 01246-904, Brazil; (A.R.M.-S.); (D.P.A.)
| | - Luis Filipe Mucci
- State Department of Health, Pasteur Institute, São Paulo 01027-000, Brazil;
| | - Diego Peres Alonso
- Department of Epidemiology, School of Public Health, University of São Paulo, São Paulo 01246-904, Brazil; (A.R.M.-S.); (D.P.A.)
- UNESP—Biotechnology Institute and Biosciences Institute, Sao Paulo State University, Botucatu 18618-689, Brazil; (M.V.N.A.); (P.E.M.R.)
| | - Marcus Vinicius Niz Alvarez
- UNESP—Biotechnology Institute and Biosciences Institute, Sao Paulo State University, Botucatu 18618-689, Brazil; (M.V.N.A.); (P.E.M.R.)
| | - Paulo Eduardo Martins Ribolla
- UNESP—Biotechnology Institute and Biosciences Institute, Sao Paulo State University, Botucatu 18618-689, Brazil; (M.V.N.A.); (P.E.M.R.)
| | - Mauro Toledo Marrelli
- Institute of Tropical Medicine, University of São Paulo, São Paulo 05403-000, Brazil
- Department of Epidemiology, School of Public Health, University of São Paulo, São Paulo 01246-904, Brazil; (A.R.M.-S.); (D.P.A.)
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Possamai CB, Rodrigues de Melo F, Mendes SL, Strier KB. Demographic changes in an Atlantic Forest primate community following a yellow fever outbreak. Am J Primatol 2022; 84:e23425. [PMID: 35899394 DOI: 10.1002/ajp.23425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 05/25/2022] [Accepted: 07/11/2022] [Indexed: 11/07/2022]
Abstract
We investigated demographic changes in three primate species (Alouatta guariba, Sapajus nigritus, and Callithrix flaviceps) at the Reserva Particular do Patrimônio Natural-Feliciano Miguel Abdala, Caratinga, Minas Gerais, Brazil, following a yellow fever outbreak (YFO) by comparing their population sizes before (2015) and after the outbreak (2017-2018), and by monitoring the size, composition, and reproductive status of groups from 2017 to 2021. Comparisons of pre- and post-YFO census data indicate the A. guariba population declined by 86.6%, from an estimated minimum of 522 individuals to 70 individuals. However, by October 2021, the population had grown to at least 86 individuals, with an adult sex ratio (N = 53) that was female-biased (0.61). Eleven of the 13 groups being monitored systematically were reproductively active with high survivorship to 12 months of age. S. nigritus declined by 40%, from 377 to 226 individuals. The sex ratio of 33 adult S. nigritus is also female-biased (0.71), and at least 8 of 15 groups being monitored are reproductively active. C. flaviceps declined by 80%, from 85 individuals to the 15-17 individuals observed from 2017 to 2021. The female-biased adult sex ratio and presence of infants and juveniles in the A. guariba and S. nigritus groups are encouraging signs, but there is still great concern, especially for C. flaviceps. Continued monitoring of the demographics of these primates is needed as their persistence appears to still be at risk.
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Affiliation(s)
- Carla B Possamai
- Financial Sector, Muriqui Instituto de Biodiversidade-MIB-R: Euclydes Etienne Arreguy Filho, Centro Caratinga, Minas Gerais, Brazil
| | - Fabiano Rodrigues de Melo
- Departamento de Engenharia Florestal, Universidade Federal de Viçosa, MeCFauna Lab, Viçosa, Minas Gerais, Brazil
| | - Sérgio Lucena Mendes
- Departamento de Ciências Biológicas, CCHN/UFES, Vitória, Espírito Santo, Brazil.,Instituto Nacional da Mata Atlântica (INMA), Santa Teresa, Espírito Santo, Brazil
| | - Karen B Strier
- Department of Anthropology, University of Wisconsin-Madison, Madison, Wisconsin, USA
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Rodrigues Oliveira A, Oliveira Dos Santos D, Pizzolato de Lucena F, Aquino de Mattos S, Parente de Carvalho T, Barroso Costa F, Giannini Alves Moreira L, Magalhães Arthuso Vasconcelos I, Alves da Paixão T, Lima Santos R. Non-thrombotic pulmonary embolism of brain, liver, or bone marrow tissues associated with traumatic injuries in free-ranging neotropical primates. Vet Pathol 2022; 59:482-488. [PMID: 35130802 DOI: 10.1177/03009858221075595] [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: 11/16/2022]
Abstract
From 2016 to 2019, Southeastern Brazil faced an outbreak of yellow fever (YF) affecting both humans and New World primates (NWP). The outbreak was associated with a marked increase in traumatic lesions in NWP in the affected regions. Non-thrombotic pulmonary embolization (NTPE) can be a consequence of massive traumatic events, and it is rarely reported in human and veterinary medicine. Here, we describe NTPE of the brain, liver, and bone marrow in free-ranging NWP, highlighting the epidemiological aspects of these findings and the lesions associated with this condition, including data on traumatic injuries in wild NWP populations during the course of a recent YF outbreak. A total of 1078 NWP were necropsied from January 2017 to July 2019. Gross traumatic injuries were observed in 444 marmosets (44.3%), 10 howler monkeys (23.2%), 9 capuchins (31.0%), 1 titi-monkey (50.0%), and 1 golden lion tamarin (33.3%). NTPE was observed in 10 animals, including 9 marmosets (2.0%) and 1 howler monkey (10.0%). NTPE was identified in the lung and comprised hepatic tissue in 1 case, brain tissue in 1 case, and bone marrow tissue in 8 cases. Although uncommon, it is important to consider NTPE with pulmonary vascular occlusion during the critical care of traumatized NWP. In addition, this study highlights the importance of conservational strategies and environmental education focusing on One Health, not only to protect these free-ranging NWP populations but also to maintain the efficacy of epidemiological surveillance programs.
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Ortiz DI, Piche-Ovares M, Romero-Vega LM, Wagman J, Troyo A. The Impact of Deforestation, Urbanization, and Changing Land Use Patterns on the Ecology of Mosquito and Tick-Borne Diseases in Central America. INSECTS 2021; 13:20. [PMID: 35055864 PMCID: PMC8781098 DOI: 10.3390/insects13010020] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/13/2021] [Accepted: 12/16/2021] [Indexed: 11/29/2022]
Abstract
Central America is a unique geographical region that connects North and South America, enclosed by the Caribbean Sea to the East, and the Pacific Ocean to the West. This region, encompassing Belize, Costa Rica, Guatemala, El Salvador, Honduras, Panama, and Nicaragua, is highly vulnerable to the emergence or resurgence of mosquito-borne and tick-borne diseases due to a combination of key ecological and socioeconomic determinants acting together, often in a synergistic fashion. Of particular interest are the effects of land use changes, such as deforestation-driven urbanization and forest degradation, on the incidence and prevalence of these diseases, which are not well understood. In recent years, parts of Central America have experienced social and economic improvements; however, the region still faces major challenges in developing effective strategies and significant investments in public health infrastructure to prevent and control these diseases. In this article, we review the current knowledge and potential impacts of deforestation, urbanization, and other land use changes on mosquito-borne and tick-borne disease transmission in Central America and how these anthropogenic drivers could affect the risk for disease emergence and resurgence in the region. These issues are addressed in the context of other interconnected environmental and social challenges.
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Affiliation(s)
- Diana I. Ortiz
- Biology Program, Westminster College, New Wilmington, PA 16172, USA
| | - Marta Piche-Ovares
- Laboratorio de Virología, Centro de Investigación en Enfermedades Tropicales (CIET), Universidad de Costa Rica, San José 11501, Costa Rica;
- Departamento de Virología, Escuela de Medicina Veterinaria, Universidad Nacional, Heredia 40104, Costa Rica
| | - Luis M. Romero-Vega
- Departamento de Patología, Escuela de Medicina Veterinaria, Universidad Nacional, Heredia 40104, Costa Rica;
- Laboratorio de Investigación en Vectores (LIVe), Centro de Investigación en Enfermedades Tropicales (CIET), Universidad de Costa Rica, San José 11501, Costa Rica;
| | - Joseph Wagman
- Malaria and Neglected Tropical Diseases Program, Center for Malaria Control and Elimination, PATH, Washington, DC 20001, USA;
| | - Adriana Troyo
- Laboratorio de Investigación en Vectores (LIVe), Centro de Investigación en Enfermedades Tropicales (CIET), Universidad de Costa Rica, San José 11501, Costa Rica;
- Departamento de Parasitología, Facultad de Microbiología, Universidad de Costa Rica, San José 11501, Costa Rica
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6
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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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7
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Andrade MDS, Campos FS, Campos AAS, Abreu FVS, Melo FL, Sevá ADP, Cardoso JDC, Dos Santos E, Born LC, da Silva CMD, Müller NFD, de Oliveira CH, da Silva AJJ, Simonini-Teixeira D, Bernal-Valle S, Mares-Guia MAMM, Albuquerque GR, Romano APM, Franco AC, Ribeiro BM, Roehe PM, de Almeida MAB. Real-Time Genomic Surveillance during the 2021 Re-Emergence of the Yellow Fever Virus in Rio Grande do Sul State, Brazil. Viruses 2021; 13:v13101976. [PMID: 34696408 PMCID: PMC8539658 DOI: 10.3390/v13101976] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 09/23/2021] [Accepted: 09/28/2021] [Indexed: 02/06/2023] Open
Abstract
The 2021 re-emergence of yellow fever in non-human primates in the state of Rio Grande do Sul (RS), southernmost Brazil, resulted in the death of many howler monkeys (genus Alouatta) and led the state to declare a Public Health Emergency of State Importance, despite no human cases reported. In this study, near-complete genomes of yellow fever virus (YFV) recovered from the outbreak were sequenced and examined aiming at a better understanding of the phylogenetic relationships and the spatio-temporal dynamics of the virus distribution. Our results suggest that the most likely sequence of events involved the reintroduction of YFV from the state of São Paulo to RS through the states of Paraná and Santa Catarina, by the end of 2020. These findings reinforce the role of genomic surveillance in determining the pathways of distribution of the virus and in providing references for the implementation of preventive measures for populations in high risk areas.
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Affiliation(s)
- Miguel de S. Andrade
- Baculovirus Laboratory, Department of Cell Biology, Institute of Biological Sciences, University of Brasilia, Brasília 70910-900, Distrito Federal, Brazil; (M.d.S.A.); (F.L.M.); (B.M.R.)
| | - Fabrício S. Campos
- Bioinformatics and Biotechnology Laboratory, Campus of Gurupi, Federal University of Tocantins, Gurupi 77410-570, Tocantins, Brazil;
| | - Aline A. S. Campos
- State Center of Health Surveillance, Rio Grande do Sul State Health Department, Porto Alegre 90610-000, Rio Grande do Sul, Brazil; (A.A.S.C.); (J.d.C.C.); (E.d.S.); (L.C.B.); (C.M.D.d.S.)
| | - Filipe V. S. Abreu
- Insect Behavior Laboratory, Federal Institute of Northern Minas Gerais, Salinas 39560-000, Minas Gerais, Brazil; (F.V.S.A.); (C.H.d.O.); (A.J.J.d.S.)
| | - Fernando L. Melo
- Baculovirus Laboratory, Department of Cell Biology, Institute of Biological Sciences, University of Brasilia, Brasília 70910-900, Distrito Federal, Brazil; (M.d.S.A.); (F.L.M.); (B.M.R.)
| | - Anaiá da P. Sevá
- Department of Agricultural and Environmental Sciences, Santa Cruz State University, Ilhéus 45662-900, Bahia, Brazil; (A.d.P.S.); (D.S.-T.); (S.B.-V.); (G.R.A.)
| | - Jader da C. Cardoso
- State Center of Health Surveillance, Rio Grande do Sul State Health Department, Porto Alegre 90610-000, Rio Grande do Sul, Brazil; (A.A.S.C.); (J.d.C.C.); (E.d.S.); (L.C.B.); (C.M.D.d.S.)
| | - Edmilson Dos Santos
- State Center of Health Surveillance, Rio Grande do Sul State Health Department, Porto Alegre 90610-000, Rio Grande do Sul, Brazil; (A.A.S.C.); (J.d.C.C.); (E.d.S.); (L.C.B.); (C.M.D.d.S.)
| | - Lucas C. Born
- State Center of Health Surveillance, Rio Grande do Sul State Health Department, Porto Alegre 90610-000, Rio Grande do Sul, Brazil; (A.A.S.C.); (J.d.C.C.); (E.d.S.); (L.C.B.); (C.M.D.d.S.)
| | - Cláudia M. D. da Silva
- State Center of Health Surveillance, Rio Grande do Sul State Health Department, Porto Alegre 90610-000, Rio Grande do Sul, Brazil; (A.A.S.C.); (J.d.C.C.); (E.d.S.); (L.C.B.); (C.M.D.d.S.)
| | - Nicolas F. D. Müller
- Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre 90050-170, Rio Grande do Sul, Brazil; (N.F.D.M.); (A.C.F.); (P.M.R.)
| | - Cirilo H. de Oliveira
- Insect Behavior Laboratory, Federal Institute of Northern Minas Gerais, Salinas 39560-000, Minas Gerais, Brazil; (F.V.S.A.); (C.H.d.O.); (A.J.J.d.S.)
| | - Alex J. J. da Silva
- Insect Behavior Laboratory, Federal Institute of Northern Minas Gerais, Salinas 39560-000, Minas Gerais, Brazil; (F.V.S.A.); (C.H.d.O.); (A.J.J.d.S.)
| | - Danilo Simonini-Teixeira
- Department of Agricultural and Environmental Sciences, Santa Cruz State University, Ilhéus 45662-900, Bahia, Brazil; (A.d.P.S.); (D.S.-T.); (S.B.-V.); (G.R.A.)
| | - Sofía Bernal-Valle
- Department of Agricultural and Environmental Sciences, Santa Cruz State University, Ilhéus 45662-900, Bahia, Brazil; (A.d.P.S.); (D.S.-T.); (S.B.-V.); (G.R.A.)
| | - Maria A. M. M. Mares-Guia
- Flavivirus Laboratory, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro 21040-360, Rio de Janeiro, Brazil;
| | - George R. Albuquerque
- Department of Agricultural and Environmental Sciences, Santa Cruz State University, Ilhéus 45662-900, Bahia, Brazil; (A.d.P.S.); (D.S.-T.); (S.B.-V.); (G.R.A.)
| | - Alessandro P. M. Romano
- General Coordination of Arbovirus Surveillance, Ministry of Health, Brasília 70058-900, Distrito Federal, Brazil;
| | - Ana C. Franco
- Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre 90050-170, Rio Grande do Sul, Brazil; (N.F.D.M.); (A.C.F.); (P.M.R.)
| | - Bergmann M. Ribeiro
- Baculovirus Laboratory, Department of Cell Biology, Institute of Biological Sciences, University of Brasilia, Brasília 70910-900, Distrito Federal, Brazil; (M.d.S.A.); (F.L.M.); (B.M.R.)
| | - Paulo M. Roehe
- Institute of Basic Health Sciences, Federal University of Rio Grande do Sul, Porto Alegre 90050-170, Rio Grande do Sul, Brazil; (N.F.D.M.); (A.C.F.); (P.M.R.)
| | - Marco A. B. de Almeida
- State Center of Health Surveillance, Rio Grande do Sul State Health Department, Porto Alegre 90610-000, Rio Grande do Sul, Brazil; (A.A.S.C.); (J.d.C.C.); (E.d.S.); (L.C.B.); (C.M.D.d.S.)
- Correspondence:
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de Azevedo Fernandes NCC, Guerra JM, Díaz-Delgado J, Cunha MS, Saad LD, Iglezias SD, Ressio RA, Dos Santos Cirqueira C, Kanamura CT, Jesus IP, Maeda AY, Vasami FGS, de Carvalho J, de Araújo LJT, de Souza RP, Nogueira JS, Spinola RMF, Catão-Dias JL. Differential Yellow Fever Susceptibility in New World Nonhuman Primates, Comparison with Humans, and Implications for Surveillance. Emerg Infect Dis 2021; 27:47-56. [PMID: 33350931 PMCID: PMC7774563 DOI: 10.3201/eid2701.191220] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
A major outbreak of yellow fever (YF) occurred in Brazil during 2016-2018. Epizootics in New World nonhuman primates are sentinel events for YF virus circulation. However, genus-specific susceptibilities and suitability for YF surveillance remain poorly understood. We obtained and compared epidemiologic, histopathologic, immunohistochemical, and molecular results from 93 human and 1,752 primate cases submitted during the recent YF outbreak in Brazil (2017), with the support of the Brazilian National YF Surveillance Program. We detected heterogeneous YF-associated profiles among the various genera of primates we analyzed. Alouatta primates were the most reliable sentinel; Sapajus and Callicebus primates had higher viral loads but lower proportional mortality rates. Callithrix primates were the least sensitive, showing lower viral loads, lower proportional mortality rates, and no demonstrable YF virus antigen or extensive lesions in liver, despite detectable viral RNA. These differences in susceptibility, viral load, and mortality rates should be considered in strategic surveillance of epizootics and control measures for YF.
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Caccavo A, Lemos H, Maroja LS, Gonçalves PR. Does stress mess with rodents' heads? Influence of habitat amount and genetic factors in mandible fluctuating asymmetry in South American water rats ( Nectomys squamipes, Sigmodontinae) from Brazilian Atlantic rainforest remnants. Ecol Evol 2021; 11:7080-7092. [PMID: 34141277 PMCID: PMC8207160 DOI: 10.1002/ece3.7557] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/23/2021] [Accepted: 03/26/2021] [Indexed: 11/20/2022] Open
Abstract
Loss of developmental stability can lead to deviations from bilateral symmetry (i.e. Fluctuating Asymmetry - FA), and is thought to be caused by environmental and genetic factors associated with habitat loss and stress. Therefore, levels of FA might be a valuable tool to monitor wild populations if FA serves as an indicator of exposure to stress due to impacts of habitat loss and fragmentation. In studies examining FA and habitat fragmentation, FA levels are often explained by loss of genetic variation, though few studies have addressed FA's use as indicator of environmental impact. Here, we investigated whether habitat loss, genetic variation, and/or inbreeding affect the developmental instability in Brazilian Atlantic forest populations of a Neotropical water rat (Nectomys squamipes). We sampled individuals from eight sites within Atlantic forest remnants with different amounts of available forest habitat and assessed FA levels with geometric morphometric techniques using adult mandibles. We used observed heterozygosity (Ho) and inbreeding coefficient (Fis), from seven microsatellite markers, as a proxy of genetic variation at individual and population levels. Populations were not significantly different for shape or size FA levels. Furthermore, interindividual variation in both shape and size FA levels and interpopulational differences in size FA levels were best explained by chance. However, habitat amount was negatively associated with both interpopulational variance and average shape FA levels. This association was stronger in populations living in areas with <28% of forest cover, which presented higher variance and higher average FA, suggesting that Nectomys squamipes might have a tolerance threshold to small availability of habitat. Our work is one of the first to use FA to address environmental stress caused by habitat loss in small mammal populations from a Neotropical biome. We suggest that shape FA might serve as a conservation tool to monitor human impact on natural animal populations.
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Affiliation(s)
- Aldo Caccavo
- Programa de Pós‐Graduação em Ciências Ambientais e ConservaçãoPPGCiAC ‐ Instituto de Biodiversidade e Sustentabilidade NUPEMUniversidade Federal do Rio de JaneiroMacaéBrazil
- Setor de MastozoologiaDepartamento de VertebradosMuseu NacionalUniversidade Federal do Rio de JaneiroRio de JaneiroBrazil
- Museu de História Natural do Ceará Prof. Dias da RochaCentro de Ciências da SaúdeUniversidade Estadual do CearáCearáBrazil
| | - Hudson Lemos
- Programa de Pós‐Graduação em Ciências Ambientais e ConservaçãoPPGCiAC ‐ Instituto de Biodiversidade e Sustentabilidade NUPEMUniversidade Federal do Rio de JaneiroMacaéBrazil
| | | | - Pablo Rodrigues Gonçalves
- Instituto de Biodiversidade e Sustentabilidade NUPEMUniversidade Federal do Rio de JaneiroMacaéBrazil
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Barroso P, Acevedo P, Vicente J. The importance of long-term studies on wildlife diseases and their interfaces with humans and domestic animals: A review. Transbound Emerg Dis 2020; 68:1895-1909. [PMID: 33179417 DOI: 10.1111/tbed.13916] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 11/06/2020] [Accepted: 11/07/2020] [Indexed: 02/06/2023]
Abstract
Long-term wildlife disease research (LTWDR) and its interfaces with humans and domestic animals provide perspective to understand the diseases' main drivers and how they operate. In a systematic review, we analysed the temporal trend of the studies on LTWDR, their aims, and the hosts, pathogens and geographic areas studied. We also evaluated the added value that such studies provide. For analysis, we selected a total of 538 articles from 1993 to 2017 with a study period greater than or equal to 4 consecutive years. A marked increase in the number of studies published during the last 20 years was observed that reflects a growing awareness of the outstanding role of wildlife as a reservoir of diseases. The most studied pathogen agents were viruses (39.2%), bacteria (38.5%) and protozoans (15.8%). Concerning the hosts, mammals (84.9%), particularly ungulates (40%) and carnivores (30.9%), and birds (12.5%) were the most represented in these long-term studies. Most articles reached conclusions concerning the effect of the disease on the infection/host dynamics (98.7%) and over 40% considered the economic consequences or proposed management and control measures. The research was mainly located in the Northern Hemisphere. While the definition of LTWDR is not only determined by the duration of the monitoring, the study must be long enough to: (a) address ecological and epidemiological questions that cannot be resolved with short-term observations or experiments, and (b) clarify the effects of different drivers. This review demonstrates that LTWDR has provided information about the causes and consequences of disease change that otherwise could not have been obtained. It may be used to inform decisions related to the emergence of disease and might help to design early warning systems of disease based on retrospective investigations.
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Affiliation(s)
- Patricia Barroso
- Grupo Sanidad y Biotecnología (SaBio), Instituto de Investigación en Recursos Cinegéticos (IREC, CSIC-UCLM-JCCM), Ciudad Real, Spain
| | - Pelayo Acevedo
- Grupo Sanidad y Biotecnología (SaBio), Instituto de Investigación en Recursos Cinegéticos (IREC, CSIC-UCLM-JCCM), Ciudad Real, Spain
| | - Joaquin Vicente
- Grupo Sanidad y Biotecnología (SaBio), Instituto de Investigación en Recursos Cinegéticos (IREC, CSIC-UCLM-JCCM), Ciudad Real, Spain.,E.T.S. de Ingenieros Agrónomos de Ciudad Real, Ronda de Calatrava, Ciudad Real, Spain
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12
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Kuno G. The Absence of Yellow Fever in Asia: History, Hypotheses, Vector Dispersal, Possibility of YF in Asia, and Other Enigmas. Viruses 2020; 12:E1349. [PMID: 33255615 PMCID: PMC7759908 DOI: 10.3390/v12121349] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/12/2020] [Accepted: 11/17/2020] [Indexed: 01/11/2023] Open
Abstract
Since the recent epidemics of yellow fever in Angola and Brazil as well as the importation of cases to China in 2016, there has been an increased interest in the century-old enigma, absence of yellow fever in Asia. Although this topic has been repeatedly reviewed before, the history of human intervention has never been considered a critical factor. A two-stage literature search online for this review, however, yielded a rich history indispensable for the debate over this medical enigma. As we combat the pandemic of COVID-19 coronavirus worldwide today, we can learn invaluable lessons from the historical events in Asia. In this review, I explore the history first and then critically examine in depth major hypotheses proposed in light of accumulated data, global dispersal of the principal vector, patterns of YF transmission, persistence of urban transmission, and the possibility of YF in Asia. Through this process of re-examination of the current knowledge, the subjects for research that should be conducted are identified. This review also reveals the importance of holistic approach incorporating ecological and human factors for many unresolved subjects, such as the enigma of YF absence in Asia, vector competence, vector dispersal, spillback, viral persistence and transmission mechanisms.
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Affiliation(s)
- Goro Kuno
- Centers for Disease Control and Prevention, Formerly Division of Vector-Borne Infectious Diseases, Fort Collins, CO 80521, USA
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13
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Torosin NS, Argibay H, Webster TH, Corneli PS, Knapp LA. Comparing the selective landscape of TLR7 and TLR8 across primates reveals unique sites under positive selection in Alouatta. Mol Phylogenet Evol 2020; 152:106920. [PMID: 32768453 DOI: 10.1016/j.ympev.2020.106920] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 03/06/2020] [Accepted: 07/31/2020] [Indexed: 11/24/2022]
Abstract
Among primates, susceptibility to yellow fever (YFV), a single-stranded (ss) RNA virus, ranges from complete resistance to high susceptibility. Howler monkeys (genus Alouatta) are the most susceptible to YFV. In order to identify Alouatta-specific genetic factors that may be responsible for their susceptibility, we collected skin samples from howler monkey museum specimens of the species A. caraya and A. guariba clamitans. We compared the rate of nonsynonymous to synonymous (dN/dS) changes of Toll-like receptor (TLR) 7 and TLR8, the two genes responsible for detecting all ssRNA viruses, across the Primate order. Overall, we found that the TLR7 gene is under stronger purifying selection in howler monkeys compared to other New World and Old World primates, but TLR8 is under the same selective pressure. When we evaluated dN/dS at each codon, we found six codons under positive selection in Alouatta TLR8 and two codons under positive selection in TLR7. The changes in TLR7 are unique to A. guariba clamitans and are found in functionally important regions likely to affect detection of ssRNA viruses by TLR7/TLR8, as well as downstream signaling. These amino acid differences in A. guariba clamitans may play a role in YFV susceptibility. These results have implications for identifying genetic factors affecting YFV susceptibility in primates.
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Affiliation(s)
- Nicole S Torosin
- Department of Anthropology, University of Utah, 260 S. Central Campus Dr., Salt Lake City, UT 84112, United States.
| | - Hernan Argibay
- Instituto de Ecología, Genética y Evolución de Buenos Aires (IEGEBA-CONICET), Intendente Güiraldes 2160 - Ciudad Universitaria (C1428EGA) Ciudad Autónoma de Buenos Aires, Argentina
| | - Timothy H Webster
- Department of Anthropology, University of Utah, 260 S. Central Campus Dr., Salt Lake City, UT 84112, United States
| | - Patrice Showers Corneli
- Department of Biology, University of Utah, 257 S. 1400 E., Salt Lake City, UT 84112, United States
| | - Leslie A Knapp
- Department of Anthropology, University of Utah, 260 S. Central Campus Dr., Salt Lake City, UT 84112, United States
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14
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Torosin NS, Webster TH, Argibay H, Sanchez Fernandez C, Ferreyra H, Uhart M, Agostini I, Knapp LA. Positively selected variants in functionally important regions of TLR7 in Alouatta guariba clamitans with yellow fever virus exposure in Northern Argentina. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2020; 173:50-60. [PMID: 32583896 DOI: 10.1002/ajpa.24086] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 04/28/2020] [Accepted: 05/10/2020] [Indexed: 01/15/2023]
Abstract
BACKGROUND In 2007-2009, a major yellow fever virus (YFV) outbreak in Northern Argentina decimated the local howler monkey (Alouatta) population. AIMS To evaluate whether the surviving howler monkeys possess advantageous genetic variants inherited from monkeys alive prior to the YFV outbreak, we explored the relationship between Toll-like receptor (TLR) 7 and TLR8 gene variation and YFV susceptibility. METHODS We used samples from Alouatta individuals in Misiones, Argentina alive before the YFV outbreak, individuals that died during the outbreak, and individuals that survived the outbreak and are alive today. We measured genetic divergence between Alouatta YFV exposure groups and evaluated Alouatta-specific substitutions for functional consequences. RESULTS We did not find different allele frequencies in the post-YFV exposure Alouatta group compared to the pre-exposure group. We identified three nonsynonymous variants in TLR7 in Alouatta guariba clamitans. Two of these substitutions are under positive selection in functionally important regions of the gene. DISCUSSION AND CONCLUSIONS Our results did not indicate that surviving howler monkey spossess advantageous genetic variants at greater frequency than those alive before the YFV outbreak. However, the positively selected unique coding differences in A. guariba clamitans are in the region important in pathogen detection which may affect YFV resistance. Morework is necessary to fully explore this hypothesis.
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Affiliation(s)
- Nicole S Torosin
- Department of Anthropology, University of Utah, Salt Lake City, Utah, USA
| | - Timothy H Webster
- Department of Anthropology, University of Utah, Salt Lake City, Utah, USA
| | - Hernán Argibay
- Instituto de Ecología, Genética y Evolución de Buenos Aires (IEGEBA-CONICET), Intendente Güiraldes 2160 - Ciudad Universitaria (C1428EGA), Buenos Aires, Argentina
| | - Candelaria Sanchez Fernandez
- Laboratorio de Biología Molecular Aplicada, Facultad de Ciencias Exactas, Químicas y Naturales, Universidad Nacional de Misiones, Posadas, Argentina
| | - Hebe Ferreyra
- Global Health Program, Wildlife Conservation Society, Buenos Aires, Argentina
| | - Marcela Uhart
- One Health Institute, School of Veterinary Medicine, University of California, Davis, Davis, California, USA
| | - Ilaria Agostini
- Instituto de Biología Subtropical (IBS), Universidad Nacional de Misiones (UNaM), Consejo Nacional de Investigaciones Científcas y Técnicas (CONICET), Puerto Iguazú, Argentina
| | - Leslie A Knapp
- Department of Anthropology, University of Utah, Salt Lake City, Utah, USA
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15
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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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16
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Silva NIO, Sacchetto L, de Rezende IM, Trindade GDS, LaBeaud AD, de Thoisy B, Drumond BP. Recent sylvatic yellow fever virus transmission in Brazil: the news from an old disease. Virol J 2020; 17:9. [PMID: 31973727 PMCID: PMC6979359 DOI: 10.1186/s12985-019-1277-7] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 12/27/2019] [Indexed: 12/11/2022] Open
Abstract
Yellow fever (YF) is an acute viral disease, affecting humans and non-human primates (NHP), caused by the yellow fever virus (YFV). Despite the existence of a safe vaccine, YF continues to cause morbidity and mortality in thousands of people in Africa and South America. Since 2016, massive YF outbreaks have taken place in Brazil, reaching YF-free zones, causing thousands of deaths of humans and NHP. Here we reviewed the main epidemiological aspects, new clinical findings in humans, and issues regarding YFV infection in vectors and NHP in Brazil. The 2016-2019 YF epidemics have been considered the most significant outbreaks of the last 70 years in the country, and the number of human cases was 2.8 times higher than total cases in the previous 36 years. A new YFV lineage was associated with the recent outbreaks, with persistent circulation in Southeast Brazil until 2019. Due to the high number of infected patients, it was possible to evaluate severity and death predictors and new clinical features of YF. Haemagogus janthinomys and Haemagogus leucocelaenus were considered the primary vectors during the outbreaks, and no human case suggested the occurrence of the urban transmission cycle. YFV was detected in a variety of NHP specimens presenting viscerotropic disease, similar to that described experimentally. Further studies regarding NHP sensitivity to YFV, YF pathogenesis, and the duration of the immune response in NHP could contribute to YF surveillance, control, and future strategies for NHP conservation.
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Affiliation(s)
- Natalia Ingrid Oliveira Silva
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Lívia Sacchetto
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Izabela Maurício de Rezende
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Giliane de Souza Trindade
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Angelle Desiree LaBeaud
- Division of Infectious Disease, Department of Pediatrics, Stanford University School of Medicine, Stanford, California, USA
| | - Benoit de Thoisy
- Laboratoire des Interactions Virus-Hôtes, Institut Pasteur de la Guyane, Cayenne, French Guiana
| | - Betânia Paiva Drumond
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
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Disease Resurgence, Production Capability Issues and Safety Concerns in the Context of an Aging Population: Is There a Need for a New Yellow Fever Vaccine? Vaccines (Basel) 2019; 7:vaccines7040179. [PMID: 31717289 PMCID: PMC6963298 DOI: 10.3390/vaccines7040179] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 10/28/2019] [Accepted: 11/05/2019] [Indexed: 12/19/2022] Open
Abstract
Yellow fever is a potentially fatal, mosquito-borne viral disease that appears to be experiencing a resurgence in endemic areas in Africa and South America and spreading to non-endemic areas despite an effective vaccine. This trend has increased the level of concern about the disease and the potential for importation to areas in Asia with ecological conditions that can sustain yellow fever virus transmission. In this article, we provide a broad overview of yellow fever burden of disease, natural history, treatment, vaccine, prevention and control initiatives, and vaccine and therapeutic agent development efforts.
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18
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de Abreu FVS, Dos Santos E, Gomes MQ, Vargas WP, de Oliveira Passos PH, Nunes E Silva C, Araújo PC, Pires JR, Romano APM, Teixeira DS, Lourenço-de-Oliveira R. Capture of Alouatta guariba clamitans for the surveillance of sylvatic yellow fever and zoonotic malaria: Which is the best strategy in the tropical Atlantic Forest? Am J Primatol 2019; 81:e23000. [PMID: 31192493 DOI: 10.1002/ajp.23000] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 05/06/2019] [Accepted: 05/14/2019] [Indexed: 11/12/2022]
Abstract
Howler monkey capture is an arduous and expensive task requiring trained and specialized professionals. We compared strategies and methods to most efficiently capture Alouatta guariba clamitans in remnants of the Atlantic Forest in Rio de Janeiro and its bordering states of Minas Gerais and São Paulo. We tested whether or not the success of expeditions in the forest with anesthetic darts, nets, and baited traps differed with and without the support of an information network, a contact chain built with key institutions and inhabitants to continuously monitor howler monkey presence. The influence of forest conditions (vegetation type and fragment size) upon darting success was also evaluated. We captured 24 free-living A. guariba clamitans. No howler monkey was caught with traps, probably due to the predominantly folivore feeding to high local plant diversity providing a great variety of food options. Captures based on an information network were significantly more efficient in terms of numbers of caught monkeys than without it. Captures with darts were considerably more efficient when performed in semideciduous forests and small forest fragments as opposed to ombrophilous forests or large woods. Although we walked great distances within the forest searching for howler monkeys, all but one animal were captured at the forest fringes. Hindrances to search and the darting method in the Atlantic Forest, for example, the steep terrain, high tree canopies, hunt pressure, and low A. guariba clamitans population density, were mitigated with the use of the information network in this monkey capture. Moreover, the information network enhanced the surveillance of zoonotic diseases, which howler monkeys and other nonhuman primates are reservoirs in Brazil, such as malaria and yellow fever.
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Affiliation(s)
| | - Edmilson Dos Santos
- Divisão de Vigilância Ambiental em Saúde, Secretaria de Saúde do Rio Grande do Sul, Rio Grande do Sul, Brazil
| | - Marcelo Quintela Gomes
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Waldemir Paixão Vargas
- Departamento de Endemias Samuel Pessoa, Escola Nacional de Saúde Pública, Fiocruz, Rio de Janeiro, Brazil
| | - Pedro Henrique de Oliveira Passos
- Coordenação Geral de Vigilância das Doenças Transmissíveis, Departamento de Vigilância das Doenças Transmissíveis, Secretaria de Vigilância em Saúde, Ministério da Saúde, Brasília, Brazil
| | - Charles Nunes E Silva
- Unidade de Vigilância de Zoonoses, Secretaria Municipal de Saúde de Maceió, Alagoas, Brazil
| | - Pollyanna Cardoso Araújo
- Coordenação Geral de Vigilância das Doenças Transmissíveis, Departamento de Vigilância das Doenças Transmissíveis, Secretaria de Vigilância em Saúde, Ministério da Saúde, Brasília, Brazil
| | - Jeferson Rocha Pires
- Centro de Ciências Biológicas e da Saúde, Universidade Estácio de Sá, Rio de Janeiro, 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, Brazil
| | | | - Ricardo Lourenço-de-Oliveira
- Laboratório de Mosquitos Transmissores de Hematozoários, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
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The Importance of Coordinated Actions in Preventing the Spread of Yellow Fever to Human Populations: The Experience from the 2016-2017 Yellow Fever Outbreak in the Northeastern Region of São Paulo State. CANADIAN JOURNAL OF INFECTIOUS DISEASES & MEDICAL MICROBIOLOGY 2019; 2019:9464768. [PMID: 31236149 PMCID: PMC6545802 DOI: 10.1155/2019/9464768] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 03/12/2019] [Accepted: 03/28/2019] [Indexed: 12/31/2022]
Abstract
Yellow fever (YF) is a zoonotic arthropod-borne disease that is caused by the yellow fever virus (YFV) and characterized by a sylvatic and urban cycle. Its most severe presentation is manifested as a hemorrhagic disease, and it has been responsible for thousands of deaths in the last decades. This study describes the public health approaches taken to control the 2016-2017 YF outbreak in nonhuman primates (NHPs) that took place in the northeastern region of São Paulo state, Brazil. NHPs recovered from the field were necropsied, and YF diagnoses were made at the Laboratory of Molecular Virology, Ribeirão Preto Medical School and the Center of Pathology, Adolfo Lutz Institute of São Paulo. NHP samples were inoculated into Vero cells for YFV isolation. RNA extraction was performed directly from NHP tissues and tested by RT-qPCR. YFV-positive samples were confirmed by sequencing. Based on the rapid RT-qPCR results, surveillance actions were implemented in the entire region. Confirmatory histopathology and immunohistochemistry for YFV were also performed. Among nine NHPs, gross hepatic involvement was observed in six animals, five of which were YFV-RT-qPCR-positive. One YFV was isolated from the serum of an infant NHP. YFV RNA sequences diverged from the virus responsible for the last epizootic that occurred in São Paulo state, but it was similar to the current Brazilian epizootic. Public health actions included dissemination of information on YF transmission, investigation of the probable location of NHP infection, characterization of the environment, and subsequent creation of the blueprint from which prevention and control measures were implemented. The YFV sylvatic cycle occurred in the periurban areas of the northeastern region of São Paulo state, but no human cases were reported during this period, showing that integrated actions between human, animal, and environmental health professionals were critical to restrain the virus to the sylvatic cycle.
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20
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Rodrigues de Oliveira A, Pinheiro GRG, Tinoco HP, Loyola ME, Coelho CM, Dias ES, Monteiro ÉM, de Oliveira Lara e Silva F, Pessanha AT, Souza AGM, Pereira NCL, Gontijo NF, Fujiwara RT, Alves da Paixão T, Santos RL. Competence of non-human primates to transmit Leishmania infantum to the invertebrate vector Lutzomyia longipalpis. PLoS Negl Trop Dis 2019; 13:e0007313. [PMID: 30995227 PMCID: PMC6488095 DOI: 10.1371/journal.pntd.0007313] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Revised: 04/29/2019] [Accepted: 03/19/2019] [Indexed: 12/02/2022] Open
Abstract
Leishmaniasis is a zoonotic disease of worldwide relevance. Visceral leishmaniasis is endemic in Brazil, where it is caused by Leishmania infantum with Lutzomyia longipalpis being the most important invertebrate vector. Non-human primates are susceptible to L. infantum infection. However, little is known about the role of these species as reservoirs. The aim of this study was to evaluate the transmissibility potential of visceral leishmaniasis by non-human primates through xenodiagnosis using the phlebotomine Lu. longipalpis as well as to identify phlebotomine species prevalent in the area where the primates were kept in captivity, and assess infection by Leishmania in captured phlebotomine specimens. Fifty two non-human primates kept in captivity in an endemic area for leishmaniasis were subjected to xenodiagnosis. All primates were serologically tested for detection of anti-Leishmania antibodies. Additionally, an anti-Lu. longipalpis saliva ELISA was performed. Sand flies fed on all animals were tested by qPCR to identify and quantify L. infantum promastigotes. Eight of the 52 non-human primates were positive by xenodiagnosis, including three Pan troglodytes, three Leontopithecus rosalia, one Sapajus apella, and one Miopithecus talapoin, with estimated numbers of promastigotes ranging from 5.67 to 1,181.93 per μg of DNA. Positive animals had higher levels of IgG anti-Lu. longipalpis saliva when compared to negative animals, prior to xenodiagnosis. Captive non-human primates are capable of infecting Lu. longipalpis with L. infantum. Our findings also demonstrate the relevance of non-human primates as sentinels to zoonotic diseases. Several phlebotomine species, including Lu. longipalpis, have been identified in the area where the primates were maintained, but only one pool of Lutzomyia lenti was infected with L. infantum. This study has implications for public health strategies and conservation medicine. Visceral leishmaniasis is a zoonotic disease with worldwide distribution. The disease is endemic in several Brazilian regions, including the city of Belo Horizonte, where visceral leishmaniasis is caused by Leishmania infantum and transmitted by Lutzomyia longipalpis. This study evaluated the competence of non-human primates to infect Lutzomyia longipalpis with Leishmania infantum. Eight of 52 non-human primates were positive to leishmaniasis by xenodiagnosis, i.e. capable of infecting sand flies, with averages of 5.67 to 1,181.93 promastigotes/μg of DNA. Positive animals had higher levels of IgG anti-Lu. longipalpis saliva when compared to negative animals, prior to xenodiagnosis. This study highlights the importance of non-human primates in the leishmaniasis cycle, providing information that is relevant for development of better public health strategies, and to conservation medicine.
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Affiliation(s)
- Ayisa Rodrigues de Oliveira
- Departamento de Clínica e Cirurgia Veterinárias, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Guilherme Rafael Gomide Pinheiro
- Departamento de Clínica e Cirurgia Veterinárias, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Herlandes P. Tinoco
- Fundação de Parques Municipais e Zoobotânica de Belo Horizonte, Belo Horizonte, Minas Gerais, Brazil
| | - Maria Elvira Loyola
- Fundação de Parques Municipais e Zoobotânica de Belo Horizonte, Belo Horizonte, Minas Gerais, Brazil
| | - Carlyle Mendes Coelho
- Fundação de Parques Municipais e Zoobotânica de Belo Horizonte, Belo Horizonte, Minas Gerais, Brazil
| | | | | | | | - Angela Tinoco Pessanha
- Fundação de Parques Municipais e Zoobotânica de Belo Horizonte, Belo Horizonte, Minas Gerais, Brazil
| | | | | | - Nelder F. Gontijo
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Ricardo T. Fujiwara
- Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Tatiane Alves da Paixão
- Departamento de Patologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Renato Lima Santos
- Departamento de Clínica e Cirurgia Veterinárias, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- * E-mail:
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21
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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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22
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de Almeida MAB, Dos Santos E, Cardoso JDC, da Silva LG, Rabelo RM, Bicca-Marques JC. Predicting Yellow Fever Through Species Distribution Modeling of Virus, Vector, and Monkeys. ECOHEALTH 2019; 16:95-108. [PMID: 30560394 DOI: 10.1007/s10393-018-1388-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 10/20/2018] [Accepted: 10/22/2018] [Indexed: 06/09/2023]
Abstract
Mapping yellow fever (YF) risk is often based on place of infection of human cases, whereas the circulation between nonhuman primates (NHP) and vectors is neglected. In 2008/2009, YF devastated NHP at the southern limit of the disease in the Americas. In view of the recent expansion of YF in Brazil, we modeled the environmental suitability for YF with data from 2008/2009 epizootic, the distribution of NHP (Alouatta spp.), and the mosquito (Haemagogus leucocelaenus) using the maximum entropy algorithm (Maxent) to define risk areas for YF and their main environmental predictors. We evaluated points of occurrence of YF based on dates of confirmed deaths of NHP in three periods, from October 2008 to: December 2008, March 2009, and June 2009. Variables with greatest influence on suitability for YF were seasonality in water vapor pressure (36%), distribution of NHP (32%), maximum wind speed (11%), annual mean rainfall (7%), and maximum temperature in the warmest month (5%). Models of early periods of the epizootic identified suitability for YF in localities that recorded NHP deaths only months later, demonstrating usefulness of the approach for predicting the disease spread. Our data supported influence of rainfall, air humidity, and ambient temperature on the distribution of epizootics. Wind was highlighted as a predicting variable, probably due to its influence on the dispersal of vectors infected with YF in fragmented landscapes. Further studies on the role of wind are necessary to improve our understanding of the occurrence of YF and other arboviruses and their dispersal in the landscape.
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Affiliation(s)
- Marco A B de Almeida
- Divisão de Vigilância Ambiental em Saúde, Centro Estadual de Vigilância em Saúde, Secretaria da Saúde do Estado do Rio Grande do Sul, Avenida Ipiranga 5400/Sala 95, Bairro Jardim Botânico, Porto Alegre, Rio Grande do Sul, CEP 90610-030, Brazil.
- Escola de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
| | - Edmilson Dos Santos
- Divisão de Vigilância Ambiental em Saúde, Centro Estadual de Vigilância em Saúde, Secretaria da Saúde do Estado do Rio Grande do Sul, Avenida Ipiranga 5400/Sala 95, Bairro Jardim Botânico, Porto Alegre, Rio Grande do Sul, CEP 90610-030, Brazil
| | - Jáder da C Cardoso
- Divisão de Vigilância Ambiental em Saúde, Centro Estadual de Vigilância em Saúde, Secretaria da Saúde do Estado do Rio Grande do Sul, Avenida Ipiranga 5400/Sala 95, Bairro Jardim Botânico, Porto Alegre, Rio Grande do Sul, CEP 90610-030, Brazil
| | - Lucas G da Silva
- Universidade Federal Rural de Pernambuco, Recife, Pernambuco, Brazil
| | - Rafael M Rabelo
- Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil
| | - Júlio César Bicca-Marques
- Escola de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
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23
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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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24
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Catenacci LS, Ferreira M, Martins LC, De Vleeschouwer KM, Cassano CR, Oliveira LC, Canale G, Deem SL, Tello JS, Parker P, Vasconcelos PFC, Travassos da Rosa ES. Surveillance of Arboviruses in Primates and Sloths in the Atlantic Forest, Bahia, Brazil. ECOHEALTH 2018; 15:777-791. [PMID: 30117001 DOI: 10.1007/s10393-018-1361-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Revised: 06/07/2018] [Accepted: 07/10/2018] [Indexed: 06/08/2023]
Abstract
From 2006 through 2014, we conducted seroepidemiological surveys on non-human primates and sloths to investigate the possible circulation of arboviruses in Bahia Atlantic Forest, Brazil. We collected a total of 196 samples from 103 Leontopithecus chrysomelas, 7 Sapajus xanthosternos, 22 Bradypus torquatus and 7 Bradypus variegatus. Serum samples were tested using neutralization test and hemagglutination inhibition test to detect total antibodies against 26 different arboviruses. The overall prevalence of arboviruses was 36.6% (51/139), with the genus Flavivirus having the highest prevalence (33.1%; 46/139), followed by Phlebovirus (5.0%; 7/139), Orthobunyavirus (4.3%; 6/139) and Alphavirus (0.7%; 1/139). Monotypic reactions suggest that the wild animals were exposed naturally to at least twelve arboviruses. Added results from the neutralization test, animals were exposed to thirteen arboviruses. Most of these viruses are maintained in transmission cycles independent of human hosts, although antibodies against dengue virus serotypes 1, 2 and 3 were found in this study. To our knowledge, this is the first study reporting exposure to arboviruses in L. chrysomelas, S. xanthosternos and B. torquatus. Our results also highlight that the Southern Bahia Atlantic Forest has a variety of vertebrate hosts and potential vectors, which may support the emergence or re-emergence of arboviruses, including those pathogenic to humans.
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Affiliation(s)
- L S Catenacci
- Campus Professora Cinobelina Elvas, Federal University of Piaui State, Rod municipal Bom Jesus Viana, BR135, km 1, Bom Jesus, PI, 64900-000, Brazil.
- Virology Graduate Program, Evandro Chagas Institute, Ananindeua, PA, 67030-000, Brazil.
- Centre for Research and Conservation, Royal Zoological Society of Antwerp, 2018, Antwerp, Belgium.
- Saint Louis Zoo Institute for Conservation Medicine, Saint Louis, MO, 63110, USA.
| | - M Ferreira
- Virology Graduate Program, Evandro Chagas Institute, Ananindeua, PA, 67030-000, Brazil
| | - L C Martins
- Virology Graduate Program, Evandro Chagas Institute, Ananindeua, PA, 67030-000, Brazil
| | - K M De Vleeschouwer
- Centre for Research and Conservation, Royal Zoological Society of Antwerp, 2018, Antwerp, Belgium
- Bicho do Mato Instituto de Pesquisa, Belo Horizonte, MG, 30360-082, Brazil
| | - C R Cassano
- State University of Santa Cruz, Ilhéus, BA, 45662-900, Brazil
| | - L C Oliveira
- Bicho do Mato Instituto de Pesquisa, Belo Horizonte, MG, 30360-082, Brazil
- Faculdade de Formação de Professores, State University of Rio de Janeiro, Rio de Janeiro, RJ, 24435-005, Brazil
| | - G Canale
- ICNHS/NEBAM, Federal University of Mato Grosso, Campus Sinop, Cuiabá, MT, 78557-000, Brazil
| | - S L Deem
- Saint Louis Zoo Institute for Conservation Medicine, Saint Louis, MO, 63110, USA
- University of Missouri-St Louis, St. Louis, MO, 63105, USA
| | - J S Tello
- Center for Conservation and Sustainable Development, Missouri Botanical Garden, St. Louis, MO, 63110, USA
| | - P Parker
- University of Missouri-St Louis, St. Louis, MO, 63105, USA
| | - P F C Vasconcelos
- Virology Graduate Program, Evandro Chagas Institute, Ananindeua, PA, 67030-000, Brazil
| | - E S Travassos da Rosa
- Virology Graduate Program, Evandro Chagas Institute, Ananindeua, PA, 67030-000, Brazil
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25
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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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26
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Kaul RB, Evans MV, Murdock CC, Drake JM. Spatio-temporal spillover risk of yellow fever in Brazil. Parasit Vectors 2018; 11:488. [PMID: 30157908 PMCID: PMC6116573 DOI: 10.1186/s13071-018-3063-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 08/15/2018] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Yellow fever virus is a mosquito-borne flavivirus that persists in an enzoonotic cycle in non-human primates (NHPs) in Brazil, causing disease in humans through spillover events. Yellow fever (YF) re-emerged in the early 2000s, spreading from the Amazon River basin towards the previously considered low-risk, southeastern region of the country. Previous methods mapping YF spillover risk do not incorporate the temporal dynamics and ecological context of the disease, and are therefore unable to predict seasonality in spatial risk across Brazil. We present the results of a bagged logistic regression predicting the propensity for YF spillover per municipality (administrative sub-district) in Brazil from environmental and demographic covariates aggregated by month. Ecological context was incorporated by creating National and Regional models of spillover dynamics, where the Regional model consisted of two separate models determined by the regions' NHP reservoir species richness (high vs low). RESULTS Of the 5560 municipalities, 82 reported YF cases from 2001 to 2013. Model accuracy was high for the National and low reservoir richness (LRR) models (AUC = 0.80), while the high reservoir richness (HRR) model accuracy was lower (AUC = 0.63). The National model predicted consistently high spillover risk in the Amazon, while the Regional model predicted strong seasonality in spillover risk. Within the Regional model, seasonality of spillover risk in the HRR region was asynchronous to the LRR region. However, the observed seasonality of spillover risk in the LRR Regional model mirrored the national model predictions. CONCLUSIONS The predicted risk of YF spillover varies with space and time. Seasonal trends differ between regions indicating, at times, spillover risk can be higher in the urban coastal regions than the Amazon River basin which is counterintuitive based on current YF risk maps. Understanding the spatio-temporal patterns of YF spillover risk could better inform allocation of public health services.
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Affiliation(s)
- RajReni B Kaul
- Center for the Ecology of Infectious Diseases, University of Georgia, Athens, GA, USA. .,Odum School of Ecology, University of Georgia, Athens, GA, USA.
| | - Michelle V Evans
- Center for the Ecology of Infectious Diseases, University of Georgia, Athens, GA, USA.,Odum School of Ecology, University of Georgia, Athens, GA, USA
| | - Courtney C Murdock
- Center for the Ecology of Infectious Diseases, University of Georgia, Athens, GA, USA.,Odum School of Ecology, University of Georgia, Athens, GA, USA.,Department of Infectious Diseases, University of Georgia, Athens, GA, USA.,Center for Tropical and Global Emerging Diseases, University of Georgia, Athens, GA, USA.,Center for Vaccines and Immunology, University of Georgia, Athens, GA, USA.,River Basin Center, University of Georgia, Athens, GA, USA
| | - John M Drake
- Center for the Ecology of Infectious Diseases, University of Georgia, Athens, GA, USA.,Odum School of Ecology, University of Georgia, Athens, GA, USA
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27
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Is vaccinating monkeys against yellow fever the ultimate solution for the Brazilian recurrent epizootics? Epidemiol Infect 2018; 146:1622-1624. [PMID: 30103835 DOI: 10.1017/s0950268818002273] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Vaccinating monkeys against yellow fever (YF) has been a common practice in the beginning of the 17D vaccine development. Although it may seem strange at first sight, vaccinating monkeys as a public health strategy is, we think, feasible and theoretically could eliminate the infection among non-human primates, interrupting the virus circulation (or significantly reducing it) and therefore reducing the risk of spilling over to the human population. We propose a series of studies that could demonstrate (or not) the efficacy and feasibility of vaccinating non-human primates YF reservoirs living in green areas of urban centres to cut off or curb the virus circulation that recurrently spill over to the human population. Therefore, vaccinating monkeys in relatively small green areas of the urban centres is perhaps the ultimate solution for the Brazilian recurrent YF epizootics.
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28
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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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29
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Klitting R, Roth L, Rey FA, de Lamballerie X. Molecular determinants of Yellow Fever Virus pathogenicity in Syrian Golden Hamsters: one mutation away from virulence. Emerg Microbes Infect 2018; 7:51. [PMID: 29593212 PMCID: PMC5874243 DOI: 10.1038/s41426-018-0053-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 02/07/2018] [Accepted: 02/11/2018] [Indexed: 11/12/2022]
Abstract
Yellow fever virus (Flavivirus genus) is an arthropod-borne pathogen, which can infect humans, causing a severe viscerotropic disease with a high mortality rate. Adapted viral strains allow the reproduction of yellow fever disease in hamsters with features similar to the human disease. Here, we used the Infectious Subgenomic Amplicons reverse genetics method to produce an equivalent to the hamster-virulent strain, Yellow Fever Ap7, by introducing a set of four synonymous and six nonsynonymous mutations into a single subgenomic amplicon, derived from the sequence of the Asibi strain. The resulting strain, Yellow Fever Ap7M, induced a disease similar to that described for Ap7 in terms of symptoms, weight evolution, viral loads in the liver and lethality. Using the same methodology, we produced mutant strains derived from either Ap7M or Asibi viruses and investigated the role of each of Ap7M nonsynonymous mutations in its in vivo phenotype. This allowed identifying key components of the virulence mechanism in hamsters. In Ap7M virus, the reversion of either E/Q27H or E/D155A mutations led to an important reduction of both virulence and in vivo replicative fitness. In addition, the introduction of the single D155A Ap7M mutation within the E protein of the Asibi virus was sufficient to drastically modify its phenotype in hamsters toward both a greater replication efficiency and virulence. Finally, inspection of the Asibi strain E protein structure combined to in vivo testing revealed the importance of an exposed α-helix in domain I, containing residues 154 and 155, for Ap7M virulence in hamsters.
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Affiliation(s)
- Raphaëlle Klitting
- UMR EPV: "Émergence des Pathologies Virales", Aix-Marseille University - IRD 190 - Inserm 1207 - EHESP - IHU Méditerranée Infection, 13385, Marseille Cedex 05, France.
| | - Laura Roth
- UMR EPV: "Émergence des Pathologies Virales", Aix-Marseille University - IRD 190 - Inserm 1207 - EHESP - IHU Méditerranée Infection, 13385, Marseille Cedex 05, France
| | - Félix A Rey
- Structural Virology Unit, Virology Department, Institut Pasteur, 75015, Paris, France
- CNRS UMR3569, Institut Pasteur, 75015, Paris, France
| | - Xavier de Lamballerie
- UMR EPV: "Émergence des Pathologies Virales", Aix-Marseille University - IRD 190 - Inserm 1207 - EHESP - IHU Méditerranée Infection, 13385, Marseille Cedex 05, France
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de Oliveira-Filho EF, Oliveira RAS, Ferreira DRA, Laroque PO, Pena LJ, Valença-Montenegro MM, Mota RA, Gil LHVG. Seroprevalence of selected flaviviruses in free-living and captive capuchin monkeys in the state of Pernambuco, Brazil. Transbound Emerg Dis 2018; 65:1094-1097. [DOI: 10.1111/tbed.12829] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - D. R. A. Ferreira
- Department of Veterinary Medicine; Federal Rural University of Pernambuco (UFRPE); Recife Brazil
| | - P. O. Laroque
- National Center for Research and Conservation of Brazilian Primates-Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio/CPB); João Pessoa Brazil
| | - L. J. Pena
- Department of Virology-IAM-Fiocruz; Recife Brazil
| | - M. M. Valença-Montenegro
- National Center for Research and Conservation of Brazilian Primates-Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio/CPB); João Pessoa Brazil
| | - R. A. Mota
- Department of Veterinary Medicine; Federal Rural University of Pernambuco (UFRPE); Recife Brazil
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Limited Evidence for Infection of Urban and Peri-urban Nonhuman Primates with Zika and Chikungunya Viruses in Brazil. mSphere 2018; 3:mSphere00523-17. [PMID: 29404420 PMCID: PMC5793042 DOI: 10.1128/msphere.00523-17] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Accepted: 01/11/2018] [Indexed: 12/31/2022] Open
Abstract
Chikungunya virus (CHIKV) and Zika virus (ZIKV) emerged in the Americas in 2013. Limited antigenic variability of CHIKV and ZIKV may restrict urban transmission cycles due to population protective immunity. In Africa, sylvatic transmission cycles involving nonhuman primates (NHP) are known for CHIKV and ZIKV, causing cyclic reemergence in humans. To evaluate whether sylvatic cycles can be expected in Latin America, we tested 207 NHP collected between 2012 and 2017 in urban and peri-urban settings in Brazil for infection with ZIKV and CHIKV. No animal tested positive for viral RNA in genus-specific and species-specific reverse transcription-PCR (RT-PCR) assays. In contrast, six animals (2.9%) from the families Atelidae, Callitrichidae, and Cebidae showed ZIKV-specific antibodies and 11 (5.3%) showed CHIKV-specific antibodies in plaque reduction neutralization tests (PRNT). Reactivity was monotypic against either ZIKV or CHIKV in all cases, opposing unspecific virucidal activity of sera. PRNT endpoint titers were low at 1:40 in all NHP, and positive specimens did not correspond to the likely dispersal route and time of introduction of both arboviruses. All antibody-positive samples were therefore tested against the NHP-associated yellow fever virus (YFV) and Mayaro virus (MAYV) and against the human-associated dengue virus (DENV) by PRNT. Two ZIKV-positive samples were simultaneously DENV positive and two CHIKV-positive samples were simultaneously MAYV positive, at titers of 1:40 to 1:160. This suggested cross-reactive antibodies against heterologous alphaviruses and flaviviruses in 24% of ZIKV-positive/CHIKV-positive sera. In sum, low seroprevalence, invariably low antibody titers, and the distribution of positive specimens call into question the capability of ZIKV and CHIKV to infect New World NHP and establish sylvatic transmission cycles. IMPORTANCE Since 2013, Zika virus (ZIKV) and chikungunya virus (CHIKV) have infected millions of people in the Americas via urban transmission cycles. Nonhuman primates (NHP) are involved in sylvatic transmission cycles maintaining ZIKV and CHIKV in the Old World. We tested NHP sampled during 2012 to 2017 in urban and peri-urban areas severely affected by ZIKV and CHIKV in Brazil. Seroprevalence and antibody titers were low for both viruses. Additionally, we found evidence for infection by heterologous viruses eliciting cross-reactive antibodies. Our data suggest that urban or peri-urban NHP are not easily infected by ZIKV and CHIKV despite intense local transmission. These data may imply that the ZIKV and CHIKV outbreaks in the Americas cannot be sustained in urban or peri-urban NHP once human population immunity limits urban transmission cycles. Investigation of diverse animals is urgently required to determine the fate of the ZIKV and CHIKV outbreaks in the Americas.
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Tátila-Ferreira A, Maia DDA, de Abreu FVS, Rodrigues WC, Alencar J. Oviposition behavior of Haemagogus leucocelaenus (Diptera: culicidae), a vector of wild yellow fever in Brazil. Rev Inst Med Trop Sao Paulo 2017; 59:e60. [PMID: 28793027 PMCID: PMC5553946 DOI: 10.1590/s1678-9946201759060] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 03/31/2017] [Indexed: 11/22/2022] Open
Abstract
Haemagogus leucocelaenus, which is considered a major vector of wild yellow fever, exhibits acrodendrophilic habits and mainly deposits its eggs in treeholes and bamboo internodes. The selection of nursery sites is essential in the life history and reproductive success of mosquitoes. The present work investigated the preferred oviposition height and period of Hg. leucocelaenus in an Atlantic forest area in Rio de Janeiro. Sampling was performed using oviposition traps that were placed on plant material at 0, 2, 4, 6, and 8 m above the ground, from August 2015 to July 2016. Eggs were more abundant during October and May, and the height of traps placement had no significant effect on the eggs number indicating that Hg. leucocelaenus explores different levels of forest habitats, a behavior that may favor the transmission of pathogens among arboreal animals including primates and humans. The findings of the present study are discussed from an ecological and epidemiological point of view.
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Affiliation(s)
- Aline Tátila-Ferreira
- Instituto Oswaldo Cruz (FIOCRUZ), Laboratório de Diptera, Rio de
Janeiro, Rio de Janeiro, Brazil
- Universidade Federal Rural do Rio de Janeiro, Instituto de Biologia,
Programa de Pós Graduação em Biologia Animal, Seropédica, Rio de Janeiro, Brazil
| | - Daniele de Aguiar Maia
- Instituto Oswaldo Cruz (FIOCRUZ), Laboratório de Diptera, Rio de
Janeiro, Rio de Janeiro, Brazil
| | - Filipe Vieira Santos de Abreu
- Instituto Oswaldo Cruz (FIOCRUZ), Laboratório de Transmissores e
Hematozoários , Rio de Janeiro , Rio de Janeiro , Brazil
- Instituto Federal do Norte de Minas Gerais , Salinas , Minas Gerais ,
Brazil
| | | | - Jeronimo Alencar
- Instituto Oswaldo Cruz (FIOCRUZ), Laboratório de Diptera, Rio de
Janeiro, Rio de Janeiro, Brazil
- Entomologistas do Brasil, EntomoBrasilis, Vassouras, Rio de Janeiro,
Brazil
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Abstract
Recognition that the live yellow fever vaccine may rarely be associated with viscerotropic disease (YEL-AVD) has diminished its safety status. However, the vaccine remains the principal tool for limiting the occurrence of yellow fever, making large portions of Africa and South America more habitable. The subject has previously been exhaustively reviewed. Novel concepts in the current report include the description of a systematic method for deciding whom to vaccinate, recommendations for obtaining data helpful in making that decision, and suggestions for additional study. The vaccine is indeed a worthy friend, but its adverse reactions need to be recognized.
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Affiliation(s)
- Stephen J Seligman
- a Department of Microbiology and Immunology , New York Medical College , Valhalla , NY , USA.,b St. Giles Laboratory of Human Genetics of Infectious Diseases , The Rockefeller University , New York , NY , USA
| | - Jean-Laurent Casanova
- b St. Giles Laboratory of Human Genetics of Infectious Diseases , The Rockefeller University , New York , NY , USA.,c Howard Hughes Medical Institute , The Rockefeller University , New York , NY , USA
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Abstract
Zika virus (ZIKV) originated and continues to circulate in a sylvatic transmission cycle between non-human primate hosts and arboreal mosquitoes in tropical Africa. Recently ZIKV invaded the Americas, where it poses a threat to human health, especially to pregnant women and their infants. Here we examine the risk that ZIKV will establish a sylvatic cycle in the Americas, focusing on Brazil. We review the natural history of sylvatic ZIKV and present a mathematical dynamic transmission model to assess the probability of establishment of a sylvatic ZIKV transmission cycle in non-human primates and/or other mammals and arboreal mosquito vectors in Brazil. Brazil is home to multiple species of primates and mosquitoes potentially capable of ZIKV transmission, though direct assessment of host competence (ability to mount viremia sufficient to infect a feeding mosquito) and vector competence (ability to become infected with ZIKV and disseminate and transmit upon subsequent feedings) of New World species is lacking. Modeling reveals a high probability of establishment of sylvatic ZIKV across a large range of biologically plausible parameters. Probability of establishment is dependent on host and vector population sizes, host birthrates, and ZIKV force of infection. Research on the host competence of New World monkeys or other small mammals to ZIKV, on vector competence of New World Aedes, Sabethes, and Haemagogus mosquitoes for ZIKV, and on the geographic range of potential New World hosts and vectors is urgently needed. A sylvatic cycle of ZIKV would make future elimination efforts in the Americas practically impossible, and paints a dire picture for the epidemiology of ZIKV and our ability to end the ongoing outbreak of congenital Zika syndrome.
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Julander JG. Animal models of yellow fever and their application in clinical research. Curr Opin Virol 2016; 18:64-9. [PMID: 27093699 DOI: 10.1016/j.coviro.2016.03.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 03/30/2016] [Indexed: 11/18/2022]
Abstract
Yellow fever virus (YFV) is an arbovirus that causes significant human morbidity and mortality. This virus has been studied intensively over the past century, although there are still no treatment options for those who become infected. Periodic and unpredictable yellow fever (YF) outbreaks in Africa and South America continue to occur and underscore the ongoing need to further understand this viral disease and to develop additional countermeasures to prevent or treat cases of illness. The use of animal models of YF is critical to accomplishing this goal. There are several animal models of YF that replicate various aspects of clinical disease and have provided insight into pathogenic mechanisms of the virus. These typically include mice, hamsters and non-human primates (NHP). The utilities and shortcomings of the available animal models of YF are discussed. Information on recent discoveries that have been made in the field of YFV research is also included as well as important future directions in further ameliorating the morbidity and mortality that occur as a result of YFV infection. It is anticipated that these model systems will help facilitate further improvements in the understanding of this virus and in furthering countermeasures to prevent or treat infections.
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Affiliation(s)
- Justin G Julander
- Institute for Antiviral Research, Utah State University, Logan, UT 84322, United States.
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Piedrahita-Cortés J, Soler-Tovar D. Geographical distribution of the red howler monkey (Alouatta seniculus) and yellow fever in Colombia. BIOMEDICA : REVISTA DEL INSTITUTO NACIONAL DE SALUD 2016; 36:116-124. [PMID: 27622801 DOI: 10.7705/biomedica.v36i0.2929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 12/09/2015] [Indexed: 06/06/2023]
Abstract
INTRODUCTION Colombia is a country with an important diversity of non-human primates, of which the red howler monkey (Alouatta seniculus) stands out because of its distribution and the role it plays in the occurrence of yellow fever. OBJECTIVE To describe the geographic co-occurrence of Alouatta seniculus and the reported presence of yellow fever. MATERIALS AND METHODS We conducted a descriptive study. The reported presence of yellow fever in Colombia was obtained from the reports and bulletins issued by the Instituto Nacional de Salud, and the study by Segura, et al. (2013). The occurrence of A. seniculus was determined based on the data from the Global Biodiversity Information Facility and the Colombian Biodiversity Information System. A map of the occurrence was developed using the DIVA-GIS program, and the ecological niche model under current conditions was created with the Maxent program. RESULTS The departments with the highest occurrence of A. seniculus were Antioquia, Meta and Casanare; 69.5% of the departments with reported history of yellow fever had co-occurrence with A. seniculus. The ecological niche model showed that Antioquia, Bolívar, La Guajira, Magdalena, Meta, Santander, Norte de Santander and Vichada had geographical portions with a probability rate nearing to 0.9 (90%). CONCLUSIONS In 69.5% of the departments with a history of yellow fever there was co-occurrence with A. seniculus, which is relevant because non-human primates play a well-known role as natural reservoirs of the virus, and they might contribute to the occurrence of the yellow fever, which makes them very useful as sentinels.
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Affiliation(s)
- Juan Piedrahita-Cortés
- Grupo de Epidemiología y Salud Pública, Universidad de La Salle, Bogotá, D.C., Colombia.
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Moreno ES, Agostini I, Holzmann I, Di Bitetti MS, Oklander LI, Kowalewski MM, Beldomenico PM, Goenaga S, Martínez M, Lestani E, Desbiez ALJ, Miller P. Yellow fever impact on brown howler monkeys (Alouatta guariba clamitans) in Argentina: a metamodelling approach based on population viability analysis and epidemiological dynamics. Mem Inst Oswaldo Cruz 2015; 110:865-76. [PMID: 26517499 PMCID: PMC4660615 DOI: 10.1590/0074-02760150075] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 09/03/2015] [Indexed: 11/21/2022] Open
Abstract
In South America, yellow fever (YF) is an established infectious disease that has been identified outside of its traditional endemic areas, affecting human and nonhuman primate (NHP) populations. In the epidemics that occurred in Argentina between 2007-2009, several outbreaks affecting humans and howler monkeys (Alouatta spp) were reported, highlighting the importance of this disease in the context of conservation medicine and public health policies. Considering the lack of information about YF dynamics in New World NHP, our main goal was to apply modelling tools to better understand YF transmission dynamics among endangered brown howler monkey (Alouatta guariba clamitans) populations in northeastern Argentina. Two complementary modelling tools were used to evaluate brown howler population dynamics in the presence of the disease: Vortex, a stochastic demographic simulation model, and Outbreak, a stochastic disease epidemiology simulation. The baseline model of YF disease epidemiology predicted a very high probability of population decline over the next 100 years. We believe the modelling approach discussed here is a reasonable description of the disease and its effects on the howler monkey population and can be useful to support evidence-based decision-making to guide actions at a regional level.
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Affiliation(s)
| | - Ilaria Agostini
- Instituto de Biología Subtropical, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de Misiones, Puerto Iguazú, Misiones, Argentina
| | - Ingrid Holzmann
- Instituto de Biología Subtropical, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de Misiones, Puerto Iguazú, Misiones, Argentina
| | - Mario S Di Bitetti
- Instituto de Biología Subtropical, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de Misiones, Puerto Iguazú, Misiones, Argentina
| | - Luciana I Oklander
- Instituto de Biología Subtropical, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de Misiones, Puerto Iguazú, Misiones, Argentina
| | - Martín M Kowalewski
- Estación Biológica de Corrientes, Consejo Nacional de Investigaciones Científicas y Técnicas, Museo Argentino de Ciencias Naturales Bernardino Rivadavia, San Cayetano, Corrientes, Argentina
| | - Pablo M Beldomenico
- Instituto de Ciencias Veterinarias del Litoral, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional del Litoral, Esperanza, Santa Fe, Argentina
| | - Silvina Goenaga
- Instituto Nacional de Enfermedades Virales Humanas Dr Julio I Maiztegui, Buenos Aires, Argentina
| | - Mariela Martínez
- Instituto de Biología Subtropical, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de Misiones, Puerto Iguazú, Misiones, Argentina
| | - Eduardo Lestani
- Instituto Nacional de Medicina Tropical, Puerto Iguazú, Misiones, Argentina
| | | | - Philip Miller
- International Union for Conservation of Nature, Apple Valley, MN, USA
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Mucci LF, Júnior RPC, de Paula MB, Scandar SAS, Pacchioni ML, Fernandes A, Consales CA. Feeding habits of mosquitoes (Diptera: Culicidae) in an area of sylvatic transmission of yellow fever in the state of São Paulo, Brazil. J Venom Anim Toxins Incl Trop Dis 2015; 21:6. [PMID: 25810711 PMCID: PMC4373060 DOI: 10.1186/s40409-015-0005-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Accepted: 03/03/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The reintroduction of sylvatic yellow fever in the state of São Paulo after about six decades was confirmed in the Northwestern region in 2000, where in 2008 there also occurred an important epizootic. The purpose of this study was to investigate the feeding habits of culicids potentially involved in the sylvatic transmission of the virus in this region. METHODS Specimens were collected in 24 forested localities at ground level with hand nets and mouth aspirators. Collections were made quarterly between October 2006 and July 2008 during daylight hours. Blood-meal identification was carried out in mosquitoes of the tribes Aedini, Mansoniini and Sabethini. The biotin/avidin sandwich ELISA was employed to determine six source types: bird, bovine, equine, rat, human and monkey. RESULTS A total of 24,879 females of the three tribes were obtained, 245 (0.98%) of which were engorged. The presence of three different blood sources per engorged female was the predominant situation, and included 35.10% of the total of samples processed. Samples with two or four different sources were represented by 25.31% and 25.71%, of the specimens, respectively, while just 9.39% had only one type and 1.22%, five different sources. Aedes scapularis, Ae. serratus (Group), Psorophora albigenu and Ps. ferox were the most abundant species and accounted for about 95% of the engorged specimens. Of the principal vector species, Haemagogus janthinomys/capricornii was found with bird, bovine and primate blood. These sources were predominant and alternated top ranking as the most frequent source according to the mosquito species and collection site. In general, primate blood was the most prevalent source. CONCLUSIONS The human population of the region visits this ecotone frequently, which indicates the need for the periodical assessment of vaccination coverage against yellow fever. The frequency of non-human primate blood source in mosquito species that show minor vector importance in yellow fever virus transmission deserves attention. The eclectic feeding habits and some aspects of the interactions between potential vectors and reservoirs of yellow fever may be associated with the habitat fragmentation characteristic of the region. We recommend that further studies on the capacity and vector competence be performed on secondary vectors in extra-Amazonian region.
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Affiliation(s)
- Luis Filipe Mucci
- Laboratory of Biology and Ecology of Mosquitoes, Superintendence for Endemic Disease Control, State Health Secretariat, Taubaté, São Paulo State Brazil
| | - Rubens Pinto Cardoso Júnior
- Regional Service 08, Superintendence for Endemic Disease Control, State Health Secretariat, São José do Rio Preto, São Paulo State Brazil
| | - Marcia Bicudo de Paula
- Department of Epidemiology, School of Public Health, University of São Paulo (USP), São Paulo, São Paulo State Brazil
| | - Sirle Abdo Salloum Scandar
- Regional Service 08, Superintendence for Endemic Disease Control, State Health Secretariat, São José do Rio Preto, São Paulo State Brazil
| | - Márcio Lunardeli Pacchioni
- Regional Service 09, Superintendence for Endemic Disease Control, State Health Secretariat, Araçatuba, São Paulo State Brazil
| | - Aristides Fernandes
- Department of Epidemiology, School of Public Health, University of São Paulo (USP), São Paulo, São Paulo State Brazil
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Abstract
Yellow fever, a mosquito-borne flavivirus disease occurs in tropical areas of South America and Africa. It is a disease of major historical importance, but remains a threat to travelers to and residents of endemic areas despite the availability of an effective vaccine for nearly 70 years. An important aspect is the receptivity of many non-endemic areas to introduction and spread of yellow fever. This paper reviews the clinical aspects, pathogenesis, and epidemiology of yellow fever, with an emphasis on recent changes in the distribution and incidence of the disease. Recent knowledge about yellow fever 17D vaccine mechanism of action and safety are discussed.
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Affiliation(s)
- Thomas P Monath
- Hookipa Biotech AG, Vienna, Austria; PaxVax Inc., Menlo Park Redwood City, CA, USA.
| | - Pedro F C Vasconcelos
- Department of Arbovirology and Hemorrhagic Fevers, National Reference Laboratory of Arboviruses, Instituto Evandro Chagas, Ministry of Health, Rodovia BR 316 Km 07, S/N, CEP 67030-000 Ananindeua, Brazil; National Institute of Science and Technology for Viral Hemorrhagic Fevers, Instituto Evandro Chagas, Ministry of Health, Rodovia BR 316 Km 07, S/N, CEP 67030-000 Ananindeua, Brazil; PAHO/WHO Collaborating Center for Arbovirus Research and Diagnostic Reference, Instituto Evandro Chagas, Ministry of Health, Rodovia BR 316 Km 07, S/N, CEP 67030-000 Ananindeua, Brazil; Pará State University, Belém, Pará, Brazil.
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