[Epidemic situation of malaria and progress of malaria elimination in Nantong City from 2008 to 2014].

OBJECTIVE

To analyze the epidemic status and progress of malaria elimination in Nantong City, so as to provide evidences for adjusting the control measures and guiding the work of malaria elimination.

METHODS

The data about the epidemic situation of malaria and malaria elimination in Nantong City from 2008 to 2014 were collected and analyzed by the method of descriptive epidemiology.

RESULTS

From 2008 to 2014, a total of 305 malaria cases were reported in Nantong City, with an annual average incidence of 0.57/100 000. Among all the cases, 26 (8.52%) were local tertian malaria cases and 279 (91.48%) were imported cases; 276 cases (90.49%) were male and most of them were young adults, and those aged in 20-59 accounted for 91.48% (279/305). There were cases reported in each month, with no obvious seasonality. The imported cases were mainly distributed in Hai'an County (80 cases), Haimen City (71 cases) and Tongzhou District (41 cases), and the total percentage of them was 68.82% among all the imported malaria cases in Nantong City. There were no local malaria cases reported in Nantong City since 2011. Qidong City, Rudong County, Chongchuan District, Development Zone and Gangzha District have reached the criteria of malaria elimination in Jiangsu Province.

CONCLUSIONS

From 2008 to 2014, the malaria cases in Nantong City are mainly imported cases, the number of local cases has decreased significantly, and there has been no local infected cases reported in the continuous 4 years of 2011-2014. Totally 5 counties (cities, districts) among the 9 have reached the criteria of malaria elimination in Jiangsu City. In the future, the control of imported malaria should still be strengthened, and the work of malaria elimination should still be promoted.