Epidemiological Survey on Paragonimiasis in Ningbo City,Zhejiang Province / 中国寄生虫学与寄生虫病杂志

0.05).The infection rate in first intermediate host(snails), second intermediate host(crabs) and animal reservoir hosts was 0.05%(9/19 368), 31.1%(15 627/50 313) and 11.9%(52/438) respectively.Evidently, natural nidi for Paragonimus spp.still exist in Ningbo City.

Survey on Natural Nidus of Trichobilharzia in Huainan Area / 中国寄生虫学与寄生虫病杂志

The life cycle of Trichobilharzia sp.can be completed in Radix auricularia and domestic or wild ducks,and people can contract cercarial dermatitis through water contact.Natural nidus of Trichobilharzia exists in Huainan area.

Survey on Natural Nidus of Metorchis orientalis in Huaihe River Basin / 中国寄生虫学与寄生虫病杂志

Parafossarulus striatulus, Pseudorasbora parva and brood ducks are involved in the lifecycle of Metorchis orientalis. Natural nidi of M.orientalis are confirmed in Huaihe River Basin.