[Analysis of epidemic situation of malaria in Jiangsu Province from 2005 to 2014].

OBJECTIVE

To understand the epidemic situation and epidemiological characteristics of malaria in Jiangsu Province from 2005 to 2014, so as to provide the evidence for formulating and adjusting the strategies and measures on malaria elimination in this province.

METHOD

The epidemiological data of malaria in Jiangsu province from 2005 to 2014 were collected, and the prevalence situation, infection sources as well as the temporal, regional and population distribution of the cases were analyzed.

RESULT

A total of 5,069 malaria cases were reported in Jiangsu Province form 2005 to 2014, there were 3,422 cases (67.51%) of vivax malaria, 1,497 cases (29.53%) of falciparum malaria, and 150 cases (2.96%) that were unclassified. Among all the reported cases, 2,139 (42.20%) were local cases, 1,131 were (22.31%) imported cases from other places in China, and 1,799 (35.49%)were imported cases from abroad. There were 3,809 male cases and 1,260 female cases, with a sex ratio of 3.02:1. The patients were mainly aged from 25 to < 60 years (accounting for 67.15%), and were mainly young adult farmers (40.26%) and migrant workers (23.63%), who mainly distributed (accounting for 60.58%) in Xuzhou, Suqian, Huai'an, Suzhou and Nantong cities. The predominant malaria type from 2005 to 2009 were vivax malaria, while after 2010, it changed to falciparum malaria.

CONCLUSIONS

The malaria epidemic situation has been effectively controlled in Jiangsu Province, which reflects the initiative achievements of malaria elimination. However, there are still many imported malaria cases from abroad, and the species of the Plasmodium are diverse. Therefore, the imported malaria from abroad still remains the key of malaria control in Jiangsu Province.