Registro de Culicidae de importância epidemiológica na área rural de Manaus, Amazonas

Abstract

A área de abrangência da Floresta Amazônica apresenta enorme potencial de biodiversidade, incluindo diversas espécies de vetores artrópodes em seus diferentes ecótopos. Este fato propicia o surgimento de novas doenças, como as arboviroses, novos focos de endemias em locais onde não ocorriam e o ressurgimento de outros focos com surtos epidêmicos a partir das alterações ambientais provocadas pelo homem 4 31 32 . Nos ambientes desmatados, onde se instalam os trabalhadores, criamse condições propícias ao desenvolvimento de culicídeos vetores de agentes patogênicos ao homem 20 . ABSTRACTThe biodiversity of the Amazon region includes many species of arthropod vectors in different ecotopes, thus enabling occurrences of diseases like malaria, filariasis and arbovirosis. From August 2001 to July 2002, we gathered culicids from inside homes, from areas surrounding these homes and from forested areas of the São João Community, in the rural zone of Manaus, State of Amazonas. 1240 specimens were collected, belonging to the Culicinae (99%) and Anophelinae (1%) subfamilies, with 50 species. The Culicini tribe clearly predominated, with 904 specimens (72.9%), and the species Culex usquatus (22.6%) and Culex quinquefasciatus (17.7%) were prominent. Out of the total number of culicids, 1,077 (86.9%) were caught in the forests, 101 (8.1%) in the areas surrounding homes and 62 (5%) inside homes. Forests were the ecotope that presented the highest species diversity.

Ecological aspects of mosquitoes (Diptera: Culicidae) in the gallery forest of Brasilia National Park, Brazil, with an emphasis on potential vectors of yellow fever

“…aegypti in sylvatic environments is rare. Barbosa et al 38 and Soares et al 39 reported the presence of this species in a rural area in the states of Amazonas and Rio de Janeiro. Tauil 6 highlights the diffi culty of identifying whether some cases of YF are transmitted by sylvatic or urban vectors.…”

Detection of Oropouche virus segment S in patients and inCulex quinquefasciatus in the state of Mato Grosso, Brazil

“…A study performed in Manaus demonstrated the temporal distribution of Cx. quinquefasciatus throughout the year, with peaks in January and April, during the rainy season ( Barbosa et al 2008 ).…”

From Haiti to the Amazon: Public Health Issues Related to the Recent Immigration of Haitians to Brazil

“…From 11 cities endemic for LF in the 1950s, Manaus amongst them [14], transmission in Brazil is now restricted to just one region in the northeast—the metropolitan area of Recife [13]. The primary vector, C. quinquefasciatus , is present in high densities and is the most frequent indoor mosquito throughout the year in the city of Manaus [15].This high vector density underlies the potential for the transmission of lymphatic filariasis to reemerge.…”