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Revista da Sociedade Brasileira de Medicina Tropical

Print version ISSN 0037-8682


MISSAWA, Nanci Akemi; RIBEIRO, Ana Lúcia Maria; MACIEL, Giovana Belem Moreira Lima  and  ZEILHOFER, Peter. Comparison of capture methods for the diagnosis of adult anopheline populations from State of Mato Grosso, Brazil. Rev. Soc. Bras. Med. Trop. [online]. 2011, vol.44, n.5, pp.555-560.  Epub Aug 19, 2011. ISSN 0037-8682.

INTRODUCTION: The present study compares human landing catches of primary malaria vectors with two alternative methods of capture: the Shannon trap and the Mosquito magnet. METHODS: This study used regression models to adjust capture data to a negative binominal distribution. RESULTS: Capture numbers and relative percentages obtained from the three methods vary strongly between species. The highest overall captures were obtained for Anopheles triannulatus with captures for the Shannon trap and the Mosquito magnet measuring more than 330% higher than captures obtained by human landings. For Anopheles darlingi, captures by the Shannon trap and the Mosquito magnet were about 14% and 26% of human landing catches, respectively. Another species with malaria transmission potential that was not sampled by human landing captures weascaptured by the Shannon trap and the Mosquito magnet (Anopheles oswaldoi). Both alternative sampling techniques can predict the human landing of Anopheles triannulatus, but without proportionality. Models for Anopheles darlingi counts, after totaling daily captures, are significant and proportional, but prediction models are more reliable when using the Shannon trap compared with the Mosquito magnet captures. CONCLUSIONS: These alternative capture methods can be partially recommended for the substitution of human landing captures or, at least, as complementary forms of monitoring for malarial mosquitoes.

Keywords : Anopheles; Capture methods; Shannon trap; Mosquito magnet; Human landing; Mato Grosso.

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