Wenxi county Center for Disease Control and Prevention. To get a health certificate, you need to go to the local CDC, so Wenxi Dongzhen can go to wenxi county CDC to get a health certificate. Wenxi county, which belongs to Yuncheng City, Shanxi Province, is located in the south of Shanxi Province, at the northern end of Yuncheng City, at the junction of Yuncheng Basin and Linfen Basin.