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Behavioural heterogeneity of Anopheles species in ecologically different localities in Southeast Asia: a challenge for vector control

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dc.contributor.author Trung, H. D. en_US
dc.contributor.author Van Bortel, W. en_US
dc.contributor.author Sochantha, T. en_US
dc.contributor.author Keokenchanh, K. en_US
dc.contributor.author Briët, O. J. T. en_US
dc.contributor.author Coosemans, M. en_US
dc.date.accessioned 2007-12-06T14:34:19Z
dc.date.available 2007-12-06T14:34:19Z
dc.date.issued 2005 en_US
dc.identifier.issn 1360-2276 en_US
dc.identifier.doi http://dx.doi.org/10.1111/j.1365-3156.2004.01378.x
dc.identifier.other ITG-P1B en_US
dc.identifier.other ITG-P2A 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 DOI en_US
dc.identifier.other FTB en_US
dc.identifier.other ABSTRACT en_US
dc.identifier.uri http://hdl.handle.net/10390/310
dc.description The definitive version is available at www3.interscience.wiley.com
dc.description.abstract In Southeast Asia the biodiversity of Anopheles species in the domestic environment is very high. Only few species are considered major vectors throughout the region, whereas the vector status of other species varies from area to area. Often it is difficult to identify an Anopheles species as a malaria vector in areas with low malaria incidence. The behaviour of Anopheles species largely determines their vector status, and insights into their behaviour are essential to evaluate the appropriateness of vector control measures. This study was conducted in six ecologically different localities in Southeast Asia to rank the different Anopheles species in terms of anthropophily and endophagy in order to estimate their current epidemiological importance. Concurrently, the biting and resting behaviour of the vectors was analysed to evaluate the appropriateness of insecticide-impregnated bed nets and residual house spraying in vector control. Anopheles dirus A was highly anthropophilic at all sites where it occurred. By contrast, the degree of anthropophily exhibited by An. minimus A depended on availability of cattle. Anopheles campestris, An. nimpe, An. sinensis, An. maculatus, An. aconitus showed a high degree of anthropophily in certain villages, indicating their potential of participating in malaria transmission, although the actual incidence of malaria in the study villages can be fully explained by transmission of the major vectors (An. dirus A, An. minimus A and An. sundaicus). Late biting of An. minimus A and biting activity throughout the night of An. sundaicus favour bed nets as a control method for these species, whilst exophilic and outdoor biting in combination with early feeding behaviour of An. dirus A will make both insecticide-impregnated bed nets and indoor residual spraying less suitable for controlling this species. Spatial variation in biting and resting behaviour was observed within almost all Anopheles species. These heterogeneities may result in the differences in epidemiological importance and in response to vector control of Anopheles species in different areas. Moreover, environmental changes and changes in human practice are expected to influence the behaviour, hence the role of the different species in malaria transmission. The effect of environmental changes on vector behaviour should be followed up carefully. en_US
dc.language English en_US
dc.publisher Blackwell Publishing
dc.subject Entomology en_US
dc.subject Anopheles en_US
dc.subject Biodiversity en_US
dc.subject Feeding behavior en_US
dc.subject Environmental factors en_US
dc.subject Vectorial capacity en_US
dc.subject Protozoal diseases en_US
dc.subject Malaria en_US
dc.subject Asia, Southeast en_US
dc.title Behavioural heterogeneity of Anopheles species in ecologically different localities in Southeast Asia: a challenge for vector control en_US
dc.type Article en_US
dc.citation.issue 3 en_US
dc.citation.jtitle Tropical Medicine and International Health en_US
dc.citation.volume 10 en_US
dc.citation.pages 251-262 en_US
dc.publisher.place Oxford
dc.identifier.pmid http://www.ncbi.nlm.nih.gov/pubmed/15730510
dc.citation.jabbreviation Trop Med Int Health en_US


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