title: A study of bancroftian filariasis on the islands of Batan and Rapu Rapu, Philippines.
abstract: The islands of Batan and Rapu Rapu in southeastern Luzon, Philippines, were surveyed for filariasis from November 1984 to May 1985. Microfilariae of Bancroftian filariasis were detected in 10.5% of the people over one year of age. Microfilarial rates and intensity of infection were the same for males and females. The highest rates for both sexes were in the 56- to 60-year-old age group. Aedes poicilius, which breeds in abaca and banana plants, was found to be very anthropophilic, comprising 96.5% of the mosquitoes biting man. This mosquito bites most frequently in the middle of the night. Dissections showed that 1.0% of Ae. poicilius were infective with third-stage larvae, and each infective mosquito contained a mean average of 5.6 larvae.
authors.affiliation: U.S. Naval Medical Research Unit No. 2, San Francisco, California 96528.
authors.forename: G W
authors.initials: GW
authors.lastname: Schultz
mesh_terms: D000293:Adolescent; D000328:Adult; D000818:Animals; D002648:Child; D002675:Child, Preschool; D009033:Culicidae / Q000469:parasitology; D004605:Elephantiasis, Filarial / Q000453:epidemiology* / Q000469:parasitology; D005260:Female; D005368:Filariasis / Q000453:epidemiology*; D006801:Humans; D008297:Male; D008842:Microfilariae / Q000302:isolation & purification; D008875:Middle Aged; D010679:Philippines; D014958:Wuchereria bancrofti / Q000302:isolation & purification