Doutorado em Doenças Infecciosas

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Navegando Doutorado em Doenças Infecciosas por Assunto "Aedes"

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    Vetores na epidemia de febre amarela silvestre no estado do Espírito Santo, Brasil, 2017
    (Universidade Federal do Espírito Santo, 2023-02-07) Stanzani, Luciana Matos de Abreu; Falqueto, Aloisio; https://orcid.org/0009-0009-8044-5504; http://lattes.cnpq.br/7897153591613337; https://orcid.org/0000-0002-2274-6108; http://lattes.cnpq.br/0784346689554133; Teixeira, Carlos Graeff; https://orcid.org/0000000327250061; http://lattes.cnpq.br/0464152494769261; Rocha, Nildimar Honorio; https://orcid.org/0000-0002-2535-3844; http://lattes.cnpq.br/1219057751301378; Nunes Neto, Joaquim Pint; https://orcid.org/0000-0001-5981-0065; http://lattes.cnpq.br/2340850717453533; Cerutti Junior, Crispim; https://orcid.org/0000000294854191; http://lattes.cnpq.br/4257067087979999
    Yellow fever is an acute mosquito-borne infectious disease that can occur in an urban or sylvatic cycle. Evidence of sylvatic yellow fever was first reported in Atlantic Forest areas “without Aedes aegypti” in Espírito Santo (ES), Brazil, during a yellow fever virus (YFV) outbreak from 1931 to 1940. This study investigated the mosquito species involved in YFV transmission during the 2017 outbreak, ~80 years after the last YFV case in ES. An entomological survey was conducted in six forest areas during and after the peak of the epidemic. We collected 10,658 mosquitoes comprising 14 genera and 78 species. Species of the tribe Sabethini were the most abundant (80.67%) and diverse (51 taxa), followed by Aedini (16.62% of the specimens collected, comprising 14 taxa). Haemagogus leucocelaenus and Hg. janthinomys/capricornii were considered the main vectors as they had a relatively high abundance, co-occurred in essentially all areas, and showed the highest YFV infection rates (minimum infection rate [MIR] = 32.5, maximum likelihood estimate [MLE] = 32.1; MIR = 54.1, MLE = 35.8, respectively). Sabethes chloropterus, Sa. soperi, Sa. identicus, Aedes aureolineatus, and Shannoniana fluviatilis were also found to be naturally infected and may have a secondary role in transmission. This is the first report confirming the infection of Sa. identicus, Ae. aureolineatus, and Sh. fluviatilis with the YFV. Our study emphasizes the importance of monitoring mosquito communities in the Atlantic Forest and maintenance of high vaccination coverage in receptive areas to YFV transmission.