[Epidemiological analysis of malaria situation in Jiangsu Province in 2009]

Abstract

Objective: To analyze the prevalent characteristics of malaria in Jiangsu Province in 2009, so as to provide the reference for making effective measures of malaria control.

Methods: The reported cases and epidemiological data of malaria in Jiangsu Province were analyzed statistically and described.

Results: A total of 389 malaria cases were reported with an incidence rate of 0.05/10 000 in 2009, 41.77% lower than that in 2008. There were reported malaria cases in all thirteen cities, and 44.73% of all the cases were from Xuzhou, Suqian, and Huai'an. There were 192 local malaria infectors with Plasmodium vivax (P.v) in Jiangsu Province. Majority of the local malaria infectors (73.44%) distributed in Xuzhou, Suqian, and Huai'an City. There were 96 imported infectors of P.v, mainly spreading over the south part of Jiangsu Province with a high percentage of migrant workers. There were 101 imported infectors of Plasmodium falciparum (P. f), 71.19% higher than that in 2008, mainly spreading in the central and north part of Jiangsu Province with a high percentage of workers who worked abroad.

Conclusions: The results show a decreased trend of malaria incidence in Jiangsu Province, however, the malaria situation in north part to the Huai River is still instable, and there are increasing imported cases of P. f as well. It is necessary to formulate the policy and measures to strengthen malaria control in target areas, especially the monitoring and management of workers who have once worked abroad.