The importance of Anopheles albitarsis E and An. darlingi in human malaria transmission in Boa Vista, state of Roraima, Brazil
AUTOR(ES)
Póvoa, Marinete Marins, Souza, Raimundo Tadeu Lessa de, Lacerda, Raimundo Nonato da Luz, Santa Rosa, Edvaldo, Galiza, Deocleciano, Souza, James Rodrigues de, Wirtz, Robert A, Schlichting, Carl D, Conn, Jan E
FONTE
Memórias do Instituto Oswaldo Cruz
DATA DE PUBLICAÇÃO
2006-03
RESUMO
In several districts of Boa Vista, state of Roraima, Brazil we found Anopheles (Nyssorhynchus) albitarsis E to be the primary vector of human malaria parasites, and during 2001-2002 it was significantly more abundant than An. darlingi (p < 0.001). Other species sampled were An. (Nys.) braziliensis, An. (Ano.) peryassui, An. (Nys.) nuneztovari, An. (Nys.) oswaldoi s.l., and An. (Nys.) triannulatus. As determined by the ELISA technique An. darlingi had a higher overall infection rate (2.1%) compared with An. albitarsis E (1.2%). However, a marginally higher proportion of An. albitarsis E was infected with Plasmodium vivax compared with An. darlingi, and the An. albitarsis E biting index was also much higher. These results suggest the importance of An. albitarsis E in malaria transmission in a savannah ecoregion of northern Amazonian Brazil, and reconfirm the importance of An. darlingi even if at lower abundance.
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