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  • Title: Natural infections of Dirofilaria immitis in Aedes (Stegomyia) polynesiensis and Aedes (Finlaya) samoanus and their implication in human health in Samoa.
    Author: Samarawickrema WA, Kimura E, Sones F, Paulson GS, Cummings RF.
    Journal: Trans R Soc Trop Med Hyg; 1992; 86(2):187-8. PubMed ID: 1440786.
    Abstract:
    Dirofilaria immitis infections were observed in Aedes polynesiensis and Ae. samoanus in Samoa, together with Wuchereria bancrofti infections, in a study on sub-periodic bancroftian filariasis during 1978-1980. In the 4 indicator villages, the infection rate in Ae. polynesiensis was 0.46% and the infective rate 0.09% (15,223 mosquitoes were dissected). The infection rate in Ae. samoanus was 0.20% and the infective rate 0.08% (10,089 dissected). In 45 selected villages throughout the country, Ae. polynesiensis infection and infective rates were 0.92% and 0.29% (7575 dissected) and the rates for Ae. samoanus were 0.21% and 0.07% (9093 dissected). Infection with D. immitis was comparable in degree and distribution to that with W. bancrofti. There was a steady and consistent exchange of parasites between the human and canine populations, creating conditions favourable for human dirofilariasis in Samoa. Clinicians are warned against this probable human infection.
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