The importance of Anopheles albitarsis E and An. darlingi in human malaria transmission in Boa Vista, state of Roraima, Brazil


Autoria(s): 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
Data(s)

01/03/2006

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.

Formato

text/html

Identificador

http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762006000200008

Idioma(s)

en

Publicador

Instituto Oswaldo Cruz, Ministério da Saúde

Fonte

Memórias do Instituto Oswaldo Cruz v.101 n.2 2006

Palavras-Chave #Anopheles albitarsis E #Anophelesdarlingi #malaria #Roraima #Brazil
Tipo

journal article