[The spreading of Oncomelania snails due to shrimp-catching during the ebb-tide of lakewater in Yueyang City].
D000818:Animals; D002681:China; D033364:Decapoda; D004199:Disease Vectors; D006801:Humans; D012552:Schistosomiasis / Q000635:transmission; D012908:Snails / Q000469:parasitology