Ocorrência e caracterização dos habitats de Aedes aegypti (Linnaeus, 1762) e Aedes albopictus (Skuse, 1894) nos períodos seco e chuvoso, no povoado Barriguda, zona rural do município de Caxias, Maranhão

Abstract

Aedes aegypti (Linnaeus, 1762) and Aedes albopictus (Skuse, 1894) are vectors of important arboviruses such as dengue fever, Zika fever and chikungunya fever,which cause serious public health problems worldwide. The aim was to verify the occurrence, characteristics and habitat location of A. aegypti and A. albopictus in residential and wild areas in dry and wet seasons in the village of Barriguda, rural area of Caxias, Maranhão. The collection of juveniles and alates was carried out in 20 residences, ten of them on the sides of MA 034 and ten residences closest to areas with denser vegetation in the dry season (September to December 2022) and in the wet season (January to April 2023). A total of 677 specimens of A. aegypti and A. albopictus larvae and pupae were collected, with the highest frequency in December(297; 43.9%)followedby February (156; 23%). A. aegypti scored higher positivity with 537 compared to A. albopictus; 79.3%. Thirteen positive containers were found with immature A. aegypti and A. albopictus, with the highest positivity in the water storage group at 71.4% in the dry season and 50% in the wet season, with the frequency in buckets (75%) being higher. Juveniles in plasticbuckets (46.1%) and rubber tires (38.5%) predominated, most of them in the shade (61.5%) and with organic material (leaf debris and moss) (92.3%). Ten winged specimens were collected, eight A. aegypti and two A. albopctus, five were found in space, and seven specimens were collected with a height of 0–50 cm. This study made it possible to obtain data on the behavior of the vectors A. aegypti and A. albopictus, which can help fight these vectors and thus reduce the spread of arboviruses, including dengue fever