Related Experiment Video
Updated: May 30, 2026

A Simple Fecal Flotation Method for Diagnosing Zoonotic Nematodes Under Field and Laboratory Conditions
Published on: December 15, 2023
Giardia duodenalis: genotypic comparison between a human and a canine isolates
Karina Braga Gomes1, Ana Paula Fernandes, Aline Menezes
1Department of Clinical and Toxicological Analysis, Federal University of Minas Gerais, Belo Horizonte, MG, Brasil. karina@coltec.ufmg.br
Introduction:
Evidence suggests that giardiasis is a zoonotic disease. The present work aimed to evaluate the genetic identity of Giardia duodenalis isolated from human and dog fecal samples from Belo Horizonte.
Methods:
Human and dog fecal samples were cultured for isolation of G. duodenalis. To determine the genotype of the isolates, primers that amplify a specific region in rRNA of the protozoan were used.
Results:
Two G. duodenalis isolates were obtained, which belong to the subgroup A genotype.
Conclusions:
These findings suggest that the transmission of giardiasis follows a zoonotic pattern.
Related Concept Videos
Giardiasis
Bacterial Gastroenteritis
