A survey of snails achatina fulica and ampullaria gigas infection with angiostrongylus cantonensis in Lianjiang of Guangdong Province China

Objective To learn more about the natural infection rate of Angiostrongylus cantonensis in Achatina fulica and Ampullaria gigas from countryside of Lianjiang District of Guangdong Province. Methods With the digestion method, the achatina fulica and ampullaria gigas were transacted from the district, then infective larvae from the snails were used to infect rats. Results 388 of achatina fulica and 296 of ampullaria gigas were examined. Their infective rate of angiostrongylus cantonensis were 24.0% and 8.1%, their infectiosity being 1～218 and 1～8 respectively. Adults of angiostrongylus cantonensis were seen in all infected rats. Conclusions There are infection of angiostrongylus cantonensis in ampullaria gigas from countryside of Lianjiang District of Guangdong Province, but achatina fulica may play a major role in transmission of the parasite in the place now.