Journal
ACTA TROPICA
Volume 97, Issue 1, Pages 50-54Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.actatropica.2005.08.002
Keywords
malaria; Anopheles; parity; mosquito; sporozoite; Ethiopia
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The man-biting behavior and Plasmodium infection rates of anopheline mosquitoes were investigated in Sille, a hyperendemic malarious area in southern Ethiopia. Seven Anopheles species were identified from all night landing collections, conducted from 18:00 to 06:00 h between October 2001 and August 2002. The predominant species was Anopheles arabiensis (55.8%), followed by Anopheles coustani (31.5%), Anopheles pharoensis (9.5%), Anopheles funestus (2.2%), Anopheles nili (0.5%), Anopheles marshallii (0.4%) and Anopheles demeilloni (0.2%). Dissection of A. arabiensis showed an average parous rate of 73.2%. A large proportion of the parous mosquitoes were caught biting in the latter part of the night. Malaria sporozoite rates were determined by ELISA for A. arabiensis, with 0.5% (4/796) infective with Plasmodium falciparum and 1.76% (14/796) with Plasmodium vivax; there were no mixed infections. From our small sample of sporozoite positives we found no association between biting behavior and sporozoite infection status. (C) 2005 Elsevier B.V. All rights reserved.
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