Two species of snails, namely, Tricula fujiansis and Semisulcospira libertina were found, but only the former was the firstintermediatehost. The infection rate of snails was 0.7%(4/569).
Objective Investigation of the species ofParagonimus, its first and second intermediatehost (snail and crab) and the infection rate ofParagonimus in Songxi county, Fujian province.