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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 104, No. 8, 2009, pp. 1117-1124
Bioline Code: oc09226
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 104, No. 8, 2009, pp. 1117-1124

 en
Gutiérrez, Lina A; González, John J; Gómez, Giovan F; Castro, Martha I; Rosero, Doris A; Luckhart, Shirley; Conn, Jan E & Correa, Margarita M

Abstract

Malaria is a serious health problem in the states of Córdoba and Antioquia, Northwestern Colombia, where 64.4% of total Colombian cases were reported in 2007. Because little entomological information is available in this region, the aim of this work was to identify the Anopheles check for this species in other resources species composition and natural infectivity of mosquitoes distributed in seven localities with highest malaria transmission. A total of 1,768 Anopheles mosquitoes were collected using human landing catches from March 2007-July 2008. Ten species were identified; overall, Anopheles nuneztovari check for this species in other resources s.l. was the most widespread (62%) and showed the highest average human biting rates. There were six other species of the Nyssorhynchus subgenus: Anopheles albimanus check for this species in other resources (11.6%), Anopheles darlingi check for this species in other resources (9.8%), Anopheles braziliensis check for this species in other resources (6.6%), Anopheles triannulatus check for this species in other resources s.l. (3.5%), Anopheles albitarsis check for this species in other resources s.l. and Anopheles oswaldoi check for this species in other resources s.l. at < 1%; and three of the Anopheles subgenus: Anopheles punctimacula check for this species in other resources , Anopheles pseudopunctipennis check for this species in other resources s.l. and Anopheles neomaculipalpus check for this species in other resources at < 1% each. Two species from Córdoba, An. nuneztovari and An. darlingi, were found to be naturally infected by Plasmodium vivax check for this species in other resources VK247, as determined by ELISA and confirmed by nested PCR. All species were active indoors and outdoors. These results provide basic information for targeted vector control strategies in these localities.

Keywords
malaria - Anopheles - biting activity - natural infectivity - Northwestern Colombia

 
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