Abstract:

Malaria data in 2011-2013 were collected and statistically analyzed using Microsoft Excel 2003 software. A total of 501 malaria cases were reported， and the annual incidence was 0.2510/100 000， 0.2486/100 000， and 0.3223/100 000， in 2011， 2012， and 2013， respectively， with an average of 0.2740/100 000 in Hunan Province. All these cases were imported and mainly reported from Changsha（44.3%， 222/501）， Shaoyang（16.6%， 83/501）， Huaihua（8.4%， 42/501）， and Yiyang（8.0%， 40/501）. 97.0%（486/501） of the cases were laboratory confirmed cases， while the other 3.0%（15/501） were clinically diagnosed. Among those lab confirmed， 41.3%（207/501） were vivax malaria cases， 47.9%（240/501） falciparum malaria cases， 1.4%（7/501）ovale malaria cases， 0.8%（4/501）malariae cases， 6.6%（33/501）mixed infection， and 2.0%（10/501） were unclassified cases. Most cases（202/501） occurred among persons aged 40-49 years. These patients were mainly farmers， workers， migrant workers， and cadres. 47.7%（239/501） were from Africa and 50.1%（251/501） from Southeast Asia.

Key words: Hunan, Malaria, Epidemiology, Imported case