Frequency of Giardia intestinalis assemblages isolated from dogs and humans in a community from Culiacan, Sinaloa, Mexico using beta-giardin restriction gene.

The assemblage of 37 Giardia intestinalis samples was determined, 19 obtained from puppy feces, 12 from stools of different human subjects under 3 years of age and 6 from axenic culture. The assemblages were classified according to the restriction pattern of beta-giardin gene with Hae III enzyme. Results showed that dog assemblages were grouped AI (52.