An outbreak of paragonimiosis in Zhengzhou city, China.

An outbreak of paragonimiosis occurred in the city of Zhengzhou, Central China, in May 1995. Of seven exposed urban inhabitants, four were seropositive for Paragonimus and had clinical symptoms consistent with acute paragonimiosis. All of four cases treated were cured with praziquantel. The P. skrjabini adult worm was obtained from the rats experimentally infected with the crabs collected in the mountainous area where the urban inhabitants had got the infection. The outbreak was attributed to the intake of raw freshwater crabs while on tourist trips in a mountainous area.