title: Response 2 to letter.
authors.affiliation: Department of Parasitology, Medical College, Zhengzhou University, Zhengzhou, China.
authors.forename: Zhong Quan
authors.initials: ZQ
authors.lastname: Wang
authors.forename: Jing
authors.initials: J
authors.lastname: Cui
mesh_terms: D000818:Animals; D006801:Humans; D008297:Male; D012553:Schistosomiasis haematobia / Q000208:ethnology*; D014195:Travel; D001743:Urinary Bladder / Q000469:parasitology*