Multilocus genotyping analysis of 114 Giardia duodenalis isolates from different populations of domestic dogs in Japan

Abstract

To determine the genotypes and zoonotic potentials of G. duodenalis isolates from different popula-tions of domestic dogs in Japan, a total of 114 Giardia positive samples were examined using multi-locus genotyping analysis at the 3 loci of glutamate dehydrogenase (gdh), beta-giardin (bg), and triose phosphate isomerase (tpi). Although the dog-adapted assemblages C and D were dominant, the zoonotic assemblage A was also demonstrated at a percentage of 23.7% (27/114). The results suggest that canine G. duodenalis isolates in Japan have the potential for zoonotic transmission.

Keywords

• domestic dogs
• giardia duodenalis
• multilocus genotyping
• zoonotic potential