Prevalence of Aedes aegypti and Aedes albopictus and observations on the ecology of dengue haemorrhagic fever in several areas of Thailand.

Autor(es): Pant C P; Jatanasen S; Yasuno M

Resumo: Aedes aegypti and A. albopictus have been shown to be involved in the transmission of dengue virus, the former being associated with outbreaks of dengue haemorrhagic fever. The prevalence of these mosquitoes in towns with good communications and villages with poor communications situated in varying parts of Thailand was investigated as it is possible that increasing urbanization has led to a spread of A. aegypti and a displacement of A. albopictus to more rural areas. A. aegypti was observed in all towns and many villages below about 1000 to 1750 m above sea level: dengue haemorrhagic fever occurred in all these areas. A. albopictus was collected at all altitudes and had a more rural distribution than A. aegypti, with which it overlapped, occupying a different ecological niche, typically in high altitudes with rich vegetation and poor communications. Of the varying indices of infestation, the "Breteau Index", which takes into account the actual number of positive breeding habitats per unit of houses, seemed to be the most sensitive index of infestation with A. aegypti. R. N. P. Sudan

Palavras-Chave: Arthropod-borne viruses; Asian tiger mosquito; Dengue hemorrhagic fever; Hemorrhagic fevers; Mosquitoes; Pyrexia; Severe dengue; Subsaharan Africa

Imprenta: The Southeast Asian Journal of Tropical Medicine and Public Health, v. 4, n. 1, p. 113-121, 1973

Descritores: Aedes aegypti - Flaviviridae ; Aedes aegypti - Viral infections ; Aedes aegypti - virus ; Aedes aegypti - Dengue ; Aedes aegypti - Epidemiology ; Aedes aegypti - Public health

Data de publicação: 1973