Autor(es): TEWARI, SC; HIRIYAN, J; REUBEN, R

Resumo: Diurnally subperiodic filariasis due to Wuchereria bancrofti has been reported from tribal populations in the Nancowry group of islands in the Andaman and Nicobar Islands, India. This was confirmed in a survey carried out during the monsoon season in 1993. Microfilariae were detected in the peripheral blood throughout a 24 h period with a peak at 18:00. The microfilaria (mf) rate ranged from 1 . 2% to 18 . 7%, with a low disease rate (mean=1 . 9%). Incidence of mf was low in children less than 10 years old (3 . 5%), but increased with increasing age. Culex (Culex) quinquefasciatus was present at a very low density. Aedes (Finlaya) niveus and Aedes (Stegomyia) malayensis were the only species commonly biting man. The former was incriminated as a vector, and found naturally infected with W. bancrofti (infection and infectivity rates 1 . 1% and 0 . 9% respectively). After experimental feeding on donors? W. bancrofti developed to L3 stage larvae in A. niveus but failed to develop in A. malayensis and A. aegypti.

Palavras-Chave: Filariasis; Wuchereria bancrofti; Epidemiology; Nicobar islands

Imprenta: Transactions of the Royal Society of Tropical Medicine and Hygiene, v. 89, n. 2, p. 163-166, 1995

Identificador do objeto digital: 10.1016/0035-9203(95)90478-6

Descritores: Aedes aegypti - Epidemiology

Data de publicação: 1995

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