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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 101, No. 2, 2006, pp. 163-168
Bioline Code: oc06031
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 101, No. 2, 2006, pp. 163-168

 en The importance of Anopheles albitarsis check for this species in other resources E and An. darlingi in human malaria transmission in Boa Vista, state of Roraima, Brazil
Marinete Marins Póvoa; Raimundo Tadeu Lessa de Souza; Raimundo Nonato da Luz Lacerda; Edvaldo Santa Rosa; Deocleciano Galiza; James Rodrigues de Souza; Robert A Wirtz; Carl D Schlichting & Jan E Conn

Abstract

In several districts of Boa Vista, state of Roraima, Brazil we found Anopheles ( Nyssorhynchus) albitarsis check for this species in other resources 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 check for this species in other resources 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.

Keywords
Anopheles albitarsis E - Anopheles darlingi - malaria - Roraima - Brazil

 
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