Frequência de aedes sp., determinada por ovitrampas, em bairros endêmicos para a dengue no município de Barra do Garças – MT

• Autor(a) principal: Braga, Mariana Lima
• Data de Publicação: 2019
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Biblioteca Digital de Monografias da UFMT
• Texto Completo: http://bdm.ufmt.br/handle/1/2047
• topic: CNPQ::OUTROS::BIOMEDICINA; Armadilhas de ovoposição; Aedes; fatores abióticos; Oviposition traps; Aedes; abiotic factors

Aedes aegypti is a gnat of the Culicidae family and genus Aedes, popularly known as “Dengue Mosquito” because it transmits the same virus as Zika virus, Chikungunya virus and Yellow Fever. Another important vector is Aedes albopictus for being a transmitter of Chikungunya virus in Brazil and famous for being a transmitter of dengue in the Asian continent. Several studies are conducted to understand the population dynamics of Ae. aegypti and Ae. albopictus in endemic areas of dengue. Given this, the present work aims to evaluate the frequency of Aedes sp. in the municipality of Barra do Garças - MT from the use of ovitraps and correlate these data with abiotic factors such as temperature, relative humidity and rainfall. Ovitraps were installed in the neighborhoods with the highest number of dengue cases recorded in 2016 and 2017 in the municipality of Barra do Garças-MT. The survey lasted 11 months, beginning in June 2018 through April 2019. Sixteen households were selected and a trap was installed in the first half of each month. The eggs were counted in the straws using a stereoscopic microscope. In the presence of positive reeds, the Aedes sp. under laboratory conditions to perform morphological identification of adult mosquitoes, and separate them according to sex. In this study we observed that there is presence of eggs every month, both in the dry and rainy periods, totaling 1828 collected eggs, the ovitrampa positivity index (IPO) and the egg density index (IDO) were calculated. where the values obtained were respectively 25.75% and 37.31. Minimum temperature, relative humidity and rainfall influenced the presence of eggs. Comparing the egg data obtained with the reported dengue cases there was a relationship during the rainy season. Of the 1828 eggs collected, 178 hatched and became adults, where we obtained 100 females and 70 males from Ae. aegypti and 3 females and 5 males of Ae. albopictus. The studied method of ovitraps proves to be effective as it reveals the level infestation of Ae. aegypti in the regions cheaply and affordably. Our study reinforces the need for entomological and epidemiological surveillance every month of the year in Barra do Garças municipality - MT, so that measures can be taken to reduce potential breeding sites of important arbovirus vectors, such as dengue, zika, chikungunya. and yellow fever.