title: Virulence of Giardia lamblia isolates to laboratory mice.
abstract: Laboratory breed albino mice free of G. muris infection were inoculated with G. lamblia cysts isolated from the stools of patients with different clinical manifestations, symptomatic diarrhoeic, symptomatic non-diarrhoeic and asymptomatic cyst carriers. The virulence of various isolates was assessed by cyst excretion rate in the stools, trophozoite counts in the duodenum and histopathological lesions of jejunal mucosa. A marked variation in the virulence of cysts obtained from the 3 groups of patients was proved.
authors.affiliation: Department of Parasitology, Faculty of Medicine, Mansoura University, Egypt.
authors.forename: S A
authors.initials: SA
authors.lastname: Romia
authors.forename: A A
authors.initials: AA
authors.lastname: Abou-Zakham
authors.forename: T
authors.initials: T
authors.lastname: Gamil
authors.forename: E S
authors.initials: ES
authors.lastname: el-Khouly
mesh_terms: D000818:Animals; D004386:Duodenum / Q000469:parasitology; D005243:Feces / Q000469:parasitology; D005260:Female; D005872:Giardia / Q000472:pathogenicity*; D005873:Giardiasis / Q000469:parasitology*; D006801:Humans; D007583:Jejunum / Q000473:pathology; D008297:Male; D051379:Mice; D008815:Mice, Inbred Strains; D014774:Virulence