Abstract:

Objective  To analyze the trends of local malaria transmission in Tengchong City from 2000 to2015 for evidences to plan scientific strategies in elimination of this disease. Methods  The data of malaria prevalence was collected in Tengchong City from 2000 to 2015, and analyzed with Microsoft Excel 2010. Results  In 2000 and 2015, a total of 239 cases of malaria infection were reported in Tengchong City, in which 170(71.13%) were associated with Plasmodium vivax infection, 67(28.03%) with P. falciparum, 1 with P. malariae and another 1 with mixed infection(Plasmodium vivax and P. falciparum). The patient’s age ranged from 1 month to 78 years old, and the male to female ratio was 1.85 to 1. Farmers and migrant workers were mostly affected. The peak prevalence was in between June and July, with most affected cases in June(41.88%, 124/239). Conclusion  Local malaria transmission in Tengchong City involves mixed P. vivax and P. falciparum besides simple P. malariae infection, and P. vivax is the most infection. Malaria transmission is generally low and distributed in different regions. There is no local infection reported since 2013.

Key words: Malaria, Local transmission, Epidemiology, Tengchong City