Analysis of 668 import infected malarias in Shanghai.

Objective This study was aimed at learning the epidemical characteristic of malaria in Shanghai.Method The data of the import infected malaria between 2003 and 2008 in Shanghai was collected and analyzed.Results Total 668 cases of import infected malaria were found during the study period,including 482 cases of P.vivax,42 cases of P.falciparum cases and 114 cases of unidentified plasmodium.Its occupancy proportion to all malaria cases was 85.97%.The cases were distributed in 19 districts of Shanghai,and occurred all the year.Male cases were more than female,and its proportion was 2.16.Their age was distributed between 1 to 81 years old,and the occupation of these cases was most of labour and pupil.These cases were infected mainly from the malaria epidemic regions such as Anhui neighbor province or Africa.Conclusion The import infected malaria cases were important epidemic situation of malaria in Shanghai and they were mainly from Anhui neighbor province or Africa.