关键词: 疟疾, 监测, 疫情, 蚊媒

Abstract:

Objective To investigate the prevalence of malaria at the National Malaria Monitoring Points (NMMPs) in Guangxi Zhuang Autonomous Region, China, and its determinant factors and to provide a basis for the development of preventive measures for malaria. Methods Information was collected at three NMMPs in Guangxi; the information included the blood test results of fever patients in local residents and mobile population, the immunological detection results for malaria among students at the monitoring points, the investigation of malaria vector Anopheles, and the use of mosquito nets, screened doors and windows, and insecticides among local residents. Results In 2010, there were 2348 person-times of blood tests at the three NMMPs among the fever patients in towns, with a blood test rate of 2.24% (2348/104 861); the blood test rates were 1.98% (2075/104 861) among local residents with fever and 0.26% (273/104 861) among the mobile population with fever. No malaria-positive cases were found. Anopheles sinensis was the dominant malaria vector species; the density ratios of An. sinensis were 99.94% outdoors and 100% indoors; the human-biting rate of An. sinensis was up to 49.75 mosquitoes/person·night in July. Conclusion The population density of malaria vector An. sinensis is still high. Strengthening malaria surveillance and management in the mobile population is the key to consolidating the prevention and control of malaria.

Key words: Malaria, Surveillance, Epidemic situation, Mosquito vector