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[B-13.2 Study on the Effects of Global Warming on Vector-Born Diseases]

[Contact Person]

Masaji Ono
Chief, Environmental Epidemiology Section
Environmental Health Div., National Institute for Environmental Studies
Environmental Agency
16-2 Onogawa, Tsukuba, Ibaraki 305 Japan
Tel:+81-298-51-6111(Ext.573), Fax:+81-298-51-0471
E-mail:onomasaj@nies.go.jp

[Total Budget for FY1991-1992]

17,840,000 Yen

[Abstract]

　Global warming will bring about the temperature elevation in Asian region, and the habitat of vectors which may carry infectious diseases, such as malaria and dengue fever, will spread in subtropical or temperate zone. The purpose of our study is to simulate the spreading through reexamination of existing data and collection of additional information by field survey.
(1) We started field survey in Yunnan Province, China. We selected three villages with different malaria endemicity (hyper-endemic, low-endemic and non-endemic areas) and with different temperature. We collected several data-set concerning the malaria endemicity, density of anopheles minimus and some meteorological condition(temperature and precipitation) in those villages.
　We found the relationship between the meteorological condition, Anopheline density and malaria endemicity.
(2) We carried out mosquito survey in several islands in Ryukyu Archipelago, and we defined the geographical and seasonal distribution of anopheles minimus and anopheles sinensis in those islands.

[Key Words]

Malaria, Anopheles minimus, Yunnan Province, China, Ryukyu Archipelago