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 epidem?ic 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 an?nual 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 Nan?tong 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 cas?es 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.

The malaria annual reports, epidemic situation reports, case investigation reports and blood examination data for febrile patients from 2003 to 2007 in Nantong City were analysed, so as to provide the scientific evidence for the measures of malaria control. The results suggested that mobile population was the key point of malaria control in Nantong City, and the main control measures should put emphasis on epidemic situation supervision of mobile population and surveillance on febrile patients.

Objective To understand the quality of malaria blood examinations in township?level hospitals,so as to provide the evidence for continuing the malaria blood examinations in the stage of post?malaria elimination. Methods A total of 64 township hospitals were investigated and 640 negative malaria blood slides were scored individually according to 10 indicators inMalaria Elimination Technical Schemein 2013 and 2014. The single and multiple indicators were calculated,and the work of blood examinations and situation of technicians were investigated. The data of malaria blood examinations and patient discovery in township hospitals of Nantong City were collected and analyzedduring the period of 2011-2014. Results Forthe single indi?cator,29.5%of the thick blood films did not reach the standard,and 35.8%of thin blood films did not reach the standard. For the multiple indicators,blood slides with more than 4 indicators below the standard(poor quality)accounted for 32.5%. From ma?laria blood examinations and malaria situation,the number of slides was 194 635 during the period of 2011-2014,and there were no local vivax malaria casesin 4consecutive years from 2011 to 2014,andlocal malaria has been effectively controlled in Nantong City. For health facilities where malaria patients initially presented,the township and village level accounted for 16.3%,and county and higher level accounted for 83.7%. Conclusions The quality of malaria blood examinations in township level hospitals of Nantong City is not high and the microscopic examination has a relatively low efficiency in the discovery of ma?laria cases. A new model for malaria blood examinations needs to be further explored.