Detection all four serotypes of dengue virus in aedes aegypti mosquitoes captured in tres lagoas – MS, Brazil

International Journal of Development Research

Volume: 
10
Article ID: 
19924
6 pages
Research Article

Detection all four serotypes of dengue virus in aedes aegypti mosquitoes captured in tres lagoas – MS, Brazil

Rachid Figueirôa Souza, Mirian Daiane de Oliveira, Aline Rafaela da Silva Rodrigues Machado and Alex Martins Machado

Abstract: 

Três Lagoas - MS has favorable characteristics for the reproduction and maintenance of the Dengue vírus (DENV) vector ranked 3th in the number of cases and inicdence. This study aimed to capture of Aedes aegypti to verify the circulation of DENV serotypes in this city. Entomological surveys were carried in urban area in nine collection points, covering of the city and using Adultrap® traps. After capture all the mosquitoes were identification, and the females were used to detect the DENV with later serotyping by RT-Nested-PCR. Larvae also were captured in many places of city and analyzed by similar technique. A total of 18,541 adults mosquitoes were captured, where 6,856 (36.98%) were identified as A, aegypti, with an average female density of 5.74 and prevalence of DENV1, DENV2, DENV4 and DENV3 respectivaley. A total of 1,173 larvae were collected, of which 348 were of the species A. aegypti (49.5%). The DENV detection showed seven positive pools (53.84%) with prevalence of similar serotypes found in adults mosquitoes. Tres Lagoas, have a high infestation of A. aegypti with high DENV positivity with circulation of all four DENV serotypes, corroborating the high number of human dengue cases occurs anually.

DOI: 
https://doi.org/10.37118/ijdr.19924.09.2020
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