| Summary: | 碩士 === 中國醫藥大學 === 環境醫學研究所碩士班 === 94 === In 1995, World Health Organization proposed global strategies in DF/DHF prevention and active controls in establishing epidemic surveillance information system based on clinic and laboratory data. These kinds of infection control strategies involve public and private departments in communities. In order to study the epidemic of dengue fever and the unique distribution of vector mosquitoes, the research use surveillance data in three southern countries in Taiwan and case reports in these areas from 1997 to 2002. The research also uses climate information in the time span from 1999 to 2003. Free-space diagram level analysis technology is applied to in the research. We found that rainfall is correlated to mosquito density in the way that 6.75 days after raining there might be a sharp increase in mosquito density. This could be explained by the vector mosquito life cycle. Dengue cases are also correlated to mosquito density where we observed that about 7 days before a case is reported, there is one day with Breatou Index (BI) > 0. Although the relationships among meteorology, mosquito density and dengue cases need to be further examined, it is certain that the vector mosquito index will increase one week after raining. Another one week after the declination of BI cure, dengue fever might break out continuously in the areas where vector mosquitoes are active if the cleaning work were not completed.
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