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Confirmation of Anopheles varuna in Vietnam, previously misidentified and mistargeted as the malaria vector Anopheles minimus

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dc.contributor.author Van Bortel, W. en_US
dc.contributor.author Harbach, R. E. en_US
dc.contributor.author Trung, H. D. en_US
dc.contributor.author Roelants, P. en_US
dc.contributor.author Backeljau, T. en_US
dc.contributor.author Coosemans, M. en_US
dc.date.accessioned 2007-12-06T14:34:22Z
dc.date.available 2007-12-06T14:34:22Z
dc.date.issued 2001 en_US
dc.identifier.issn 0002-9637 en_US
dc.identifier.other ITG-P1A en_US
dc.identifier.other ITG-P4B en_US
dc.identifier.other ITG-PLA en_US
dc.identifier.other PARAS en_US
dc.identifier.other U-ENTOM en_US
dc.identifier.other JIF en_US
dc.identifier.other ABSTRACT en_US
dc.identifier.other URL
dc.identifier.uri http://hdl.handle.net/10390/320
dc.description.abstract Malaria control programs in Southeast Asia are faced with several questions concerning vector behavior and species identification, which need to be answered to consolidate and further improve the results of control practices. The vector system in Southeast Asia is complex because of the number of species potentially involved in malaria transmission. Additionally, the follow-up and evaluation of preventive control measures are hampered by the misidentification of vectors due to overlapping morphological characters of the female mosquitoes. In central Vietnam, control practices are aimed at 2 main species, Anopheles dirus s.l. and Anopheles minimus s.l. These reputed vectors were studied in an area of Binh Thuan Province of south-central Vietnam. Different collection methods were used to capture mosquitoes quarterly during a 1-year period. Mosquitoes were identified in the field and later subjected to detailed morphological examination and polymerase chain reaction-restriction fragment length polymorphism analysis. What was thought to be an unusual morphotype of An. minimus was shown to be Anopheles varuna, and most specimens identified as the former species in the field proved to be the latter species. Very few An. minimus individuals were found during the study period. The population of An. varuna was found to be highly zoophilic, and based on this behavior, it cannot be considered a vector in Vietnam. Because this species was previously being misidentified as An. minimus, a nonvector was mistargeted as a malaria vector in Binh Thuan Province. Anopheles dirus, which was found positive for Plasmodium falciparum circumsporozoite via enzyme-linked immunosorbent assay, is clearly the main vector in this area. Despite the fact that several potential secondary vectors were found during the study, the primary target for vector control in the region should be An. dirus. en_US
dc.language English en_US
dc.subject Entomology en_US
dc.subject Anopheles minimus en_US
dc.subject Anopheles varuna en_US
dc.subject Identification en_US
dc.subject Protozoal diseases en_US
dc.subject Malaria en_US
dc.subject Vector control en_US
dc.subject Anopheles dirus en_US
dc.subject Vietnam en_US
dc.subject Asia, Southeast en_US
dc.title Confirmation of Anopheles varuna in Vietnam, previously misidentified and mistargeted as the malaria vector Anopheles minimus en_US
dc.type Article en_US
dc.citation.jtitle American Journal of Tropical Medicine and Hygiene en_US
dc.citation.volume 65 en_US
dc.citation.pages 729-732 en_US
dc.identifier.pmid http://www.ncbi.nlm.nih.gov/pubmed/11791965
dc.identifier.url http://www.ajtmh.org/cgi/reprint/65/6/729.pdf
dc.citation.jabbreviation Am J Trop Med Hyg en_US


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