RESUMO
Information on the endemic situation of malaria in the joint malaria control zone of Guizhou and Guangxi Provinces from 2012 to 2013 was collected. Blood test results from fever patients and the healthy population were obtained. The spatiotemperal and occupational distributions of malaria cases were analyzed. During 2012-2013, blood tests were performed in 253 606 local residents and 11 212 returning residents in the joint area, as well as in 19 843 migrants from outside the area, resulting in discovery of 30 Plasmodium-infected cases only in the returning residents. All the 30 cases were imported from abroad, most of whom were electricity workers returning from the Africa. Among them, 28 cases were reported in 6 counties in Guangxi, and 2 in 2 counties/cities in Guizhou.