Vector competence of Brazilian Aedes aegypti and Ae. albopictus for a Brazilian yellow fever virus isolate

Johnson, Barbara W.; Chambers, Trudy V.; Crabtree, Mary B.; Filippis, Ana María Bispo de; Vilarinhos, Paulo T.R.; Resende, Marcelo Carvalho de; Macoris, Maria de Lourdes G; Miller, Barry R.

doi:10.1016/s0035-9203(02)90326-3

Cited by 58 publications

(47 citation statements)

References 12 publications

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“…18 The disease is caused by a virus from the Flaviviridae family, genus Flavivírus, and transmitted by the bite of bloodsucking insects of the Culicidae family, genus Haemagogus and Aedes. 11 Urban and sylvatic cycles are how it is classically described. Sylvatic yellow fever (SYF) occurs in forested areas, where it is transmitted by mosquitoes to non-human primates (NHP), amplifying hosts of the virus.…”

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confidence: 99%

Febre amarela silvestre: reemergência de transmissão no estado de São Paulo, Brasil, 2009

et al. 2013

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METHODS: This is a descriptive study of a sylvatic yellow fever outbreak in the Southwestern region of the state from February to April 2009. Suspected and confirmed cases in humans and in non-human primates were evaluated. Entomological investigation in sylvatic environment involved capture at ground level and in the tree canopy to identify species and detect natural infections. Control measures were performed in urban areas to control Aedes aegypti. Vaccination was directed at residents living in areas with confirmed viral circulation and also at nearby cities according to national recommendation. RESULTS:Twenty-eight human cases were confirmed (39.3% case fatality rate) in rural areas of Sarutaiá, Piraju, Tejupá, Avaré and Buri. The deaths of 56 nonhuman primates were also reported, 91.4% were Allouatta sp. Epizootics was confirmed in two non-human primates in the cities of Itapetininga and Buri. A total of 1,782 mosquitoes were collected, including Haemagogus leucocelaenus, Hg. janthinomys/capricornii, and Sabethes chloropterus, Sa. purpureus and Sa. undosus. Yellow fever virus was isolated from a group of Hg. Leucocelaenus from Buri. Vaccination was carried out in 49 cities, with a total of 1,018,705 doses. Nine serious post-vaccination adverse events were reported. CONCLUSIONS:The cases occurred between February and April 2009 in areas with no recorded yellow fever virus circulation in over 60 years. The outbreak region occurred outside the original recommended vaccination area with a high percentage of susceptible population. The fast adoption of control measures interrupted the human transmission within a month and the confirmation of viral circulation in humans, monkeys and mosquitoes. The results allowed the identification of new areas of viral circulation but further studies are required to clarify the dynamics of the spread of this disease.

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confidence: 99%

Febre amarela silvestre: reemergência de transmissão no estado de São Paulo, Brasil, 2009

et al. 2013

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“…Ae. albopictus has the ability to spread rapidly, to occupy different environments and to take blood meals off various mammal species, leading to the hypothesis that it may be a potential vector of yellow fever and dengue in the Americas and potentially changing the epidemiology of the transmission of these diseases (Johnson et al 2002).…”

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confidence: 99%

Mosquito (Diptera: Culicidae) fauna in parks in greater São Paulo, Brazil

et al. 2015

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Municipal parks in the city of Sã o Paulo, which are used for leisure purposes, contain remnants of the flora of the Atlantic Forest, as well as lakes and springs, and are home to mammals, birds and arthropods, some of which can be vectors of disease. The eastern side of the city has the largest population in Sã o Paulo and twenty-four municipal parks. The aim of this study was to investigate Culicidae fauna in two parks on this side of the city and to determine which of the Culicidae species identified have the potential to act as bioindicators and vectors of human pathogens. Culicidae were collected monthly between March 2011 and February 2012 in Carmo Park and Chico Mendes Park with battery-powered aspirators, Shannon traps and CDC traps for adult mosquitoes, and larval dippers and suction samplers for immature mosquitoes. To confirm sample sufficiency, the EstimateS program was used to plot sample-based species accumulation curves and estimate total richness by the Jackknife 1 method. In all, 1,092 culicids from nine genera (Aedes, Anopheles, Coquillettidia, Culex, Limatus, Mansonia, Trichoprosopon, Toxorhynchites and Uranotaenia) and nineteen taxonomic units were collected in Carmo Park. Coquillettidia venezuelensis (Theobald 1912), Aedes scapularis (Rondani 1848) and Culex (Culex) spp. Linnaeus 1758 were the most abundant adults, and Culex (Melanoconion) spp. Theobald 1903 and Anopheles strodei Root 1926 the most abundant immature mosquitoes. In Chico Mendes Park 4,487 mosquitoes in six genera and eighteen taxonomic units were collected. Culex (Cux.) spp. and Ae. scapularis were the most abundant adults, and Ae. albopictus (Skuse 1984) the most abundant immature mosquitoes. The species accumulation curves in both parks were close to the asymptote, and the total richness estimate was close to the observed richness. Some culicid taxons are bioindicators of environmental conditions in the areas they inhabit. It is important to monitor native fauna in municipal parks in Sã o Paulo as various species in this study were found to have vector competence and capacity to transmit pathogens, such as arboviruses. Keywords: Diversity, culicids, mosquitoes, municipal parks.PAULA, M.B., FERNANDES, A., MEDEIROS-SOUSA, A.R., CERETTI-JUNIOR, W., CHRISTE, R.O., STROEBEL, R., PEDROSA, L., ALMEIDA, R., CARVALHO, G.C., PEREIRA, U., JACINTHO, M., NATAL, D., MARRELLI, M.T.

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“…albopictus may have on the dynamics of the transmission of the dengue virus in the Americas, its interaction with Aedes aegypti needs attention, since both are species that essentially develop within the same artificial breeding areas of rural, urban and peripherally urban environments. 3 Their competence as vectors for transmitting diseases like dengue, yellow fever and Venezuelan equine encephalitis have been proven under laboratory conditions. 3 The risk of urban epidemics increases with increased mosquito population density and wider distribution.…”

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“…3 Their competence as vectors for transmitting diseases like dengue, yellow fever and Venezuelan equine encephalitis have been proven under laboratory conditions. 3 The risk of urban epidemics increases with increased mosquito population density and wider distribution. This is especially so in relation to the urban areas bordering rural areas where sporadic cases of forest yellow fever are already occurring.…”

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Registro da ocorrência de Aedes albopictus em área urbana do município de Manaus, Amazonas

et al. 2003

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Vector competence of Brazilian Aedes aegypti and Ae. albopictus for a Brazilian yellow fever virus isolate

Cited by 58 publications

References 12 publications

Febre amarela silvestre: reemergência de transmissão no estado de São Paulo, Brasil, 2009

Febre amarela silvestre: reemergência de transmissão no estado de São Paulo, Brasil, 2009

Mosquito (Diptera: Culicidae) fauna in parks in greater São Paulo, Brazil

Registro da ocorrência de Aedes albopictus em área urbana do município de Manaus, Amazonas

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