Investigation on second Intermediate Host of Lung Fluke in Jinghong Region / 昆明医科大学学报

ABSTRACT

The second intermediate hosts of lung fluke in the jinghong region are Potamon chinghungense and P.hispidum.Their natural infection rates are 68.3% and 55.6% respectively and on the average,each crab contains 11.3 and 2.6 metacerc- ariae.There is no difference between male and female in the natural infection rate, but the infectiosity is different in different places.5.8% of the crabs are infected by three sp(?)cies of metacercariae simultaneously.About 70% metacercariae of Par- ogonimus microrchis or P.proliferus are parasitized in the cephalothorax of P.chinghungense or P.hispidum.