Potential vectors of loiasis and other tabanids on the island of Bioko,Equatorial Guinea |
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| Authors: | Cheke R A Mas J Chainey J E |
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| Institution: | Natural Resources Institute, University of Greenwich, Central Avenue, Chatham Maritime, Kent ME4 4TB, U.K. r.a.cheke@greenwich.ac.uk |
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| Abstract: | The biting flies Chrysops dimidiatus Wulp and C.silaceus Austen (Diptera: Tabanidae), vectors of Loa loa (Cobbold) (Nematoda: Onchocercidae) on the African mainland, were found to be widespread on the island of Bioko (Equatorial Guinea) during 1996-2001. These tabanids were particularly prevalent in the southern part of Bioko, indicating potential transmission of loiasis on the island. The only other tabanids previously recorded on Bioko, Tabanus argenteus Surcouf (from 1915) and Haematopota near heptagramma Speiser (from 1933), were also collected. The possibility of loiasis being endemic on Bioko contra-indicates ivermectin treatment of onchocerciasis cases, due to risks of adverse side-effects. |
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| Keywords: | Chrysops dimidiatus C silaceus Loa loa Tabanidae ivermectin loiasis onchocerciasis Bioko Equatorial Guinea |
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