Abstract:

【Abstract】 Objective  To analyze the epidemiological characteristics of imported malaria in Anhui province from 2013 through 2015 for scientific evidence to prevent and control the malaria prevalence. Methods   The epidemiological data of all imported malaria cases were collected from January 1, 2013 to December 31, 2015 in Anhui provice, and descriptively analyzed regarding the distribution in time, areas and population, endemic sources, diagnosis and treatment. Results  A total of 475 imported malaria cases were reported in Anhui from 2013 through 2015. Twenty-five were serious disease and 3 were dead out of the 475 cases. The fetal death rate was 0.63%. 462(97.26%) cases were imported from African countries, and the remaining 13(2.74%) from Southeast Asia and South Asia. The disease primarily affected young and adult men working in overseas countries and population aged (40.27±8.80) years. The most frequently reported cases were in spring festival holidays and between May and July. Although the cases were reported in areas across Anhui, yet were mainly distributed in Hefei areas due to relatively larger number of migrant workers. The median time from onset to visiting doctors was one day(0, 3), and the median time from onset to confirmed diagnosis was one day(0, 3). Conclusion  Severe case accounts for a higher percentage in the imported malaria cases in Anhui province (5.26%), and death occasionally occurs, for which early diagnosis and treatment of this disease is important. In addition, tertian malaria infection should be timely managed in order to prevent it from secondary prevalence in our province.

Key words: Malaria, Imported disease, Epidemic situation, Control strategy, Anhui Province