Giardia duodenalis: genotypic comparison between a human and a canine isolates

Rev Soc Bras Med Trop. 2011 Jul-Aug;44(4):508-10. doi: 10.1590/s0037-86822011000400021.

Abstract

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.

MeSH terms

  • Animals
  • Dog Diseases / parasitology
  • Dogs
  • Feces / parasitology*
  • Genotype
  • Giardia / classification
  • Giardia / genetics*
  • Giardia / isolation & purification
  • Giardiasis / parasitology*
  • Giardiasis / veterinary
  • Humans
  • RNA, Protozoan / genetics
  • RNA, Ribosomal / genetics
  • Sequence Analysis, RNA

Substances

  • RNA, Protozoan
  • RNA, Ribosomal