Comparison of capture methods for the diagnosis of adult anopheline populations from State of Mato Grosso, Brazil Comparação de métodos de captura para o diagnóstico da população de anofelinos adultos do Estado de Mato Grosso

• Main Authors: Nanci Akemi Missawa, Ana Lúcia Maria Ribeiro, Giovana Belem Moreira Lima Maciel, Peter Zeilhofer
• Format: Article in Journal/Newspaper
• Language: English
• Published: Sociedade Brasileira de Medicina Tropical (SBMT) 2011
• Subjects: Anopheles; Métodos de captura; Armadilha de Shannon; Mosquito magnet; Isca humana; Mato Grosso; Capture methods; Shannon trap; Human landing; Arctic medicine. Tropical medicine; RC955-962; Arctic
• Online Access: https://doaj.org/article/89657a9afe224e17a4959e941d127bfa

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. INTRODUÇÃO: O presente estudo compara a captura através da isca humana dos principais vetores da malária, com dois métodos alternativos de captura, a armadilha luminosa de Shannon e a armadilha Mosquito magnet. MÉTODOS: O presente estudo utiliza modelos de regressão para ajustar os dados obtidos para uma distribuição binomial negativa. RESULTADOS: Os números e as proporções relativas obtidas nos três métodos variaram fortemente entre as espécies. A maior densidade capturada foi de Anopheles triannulatus, através das armadilhas de Shannon e do Mosquito magnet sendo mais de 330% superior que a ...