PMID: 9435134Jan 22, 1998Paper

Genetic analysis of Giardia from hoofed farm animals reveals artiodactyl-specific and potentially zoonotic genotypes

The Journal of Eukaryotic Microbiology
P L EyG Mayrhofer

Abstract

Thirty one Giardia isolates, established from six species of hoofed livestock by axenic culture or growth in suckling mice, were compared genetically by analysis of DNA amplified from loci encoding variant surface proteins or the enzyme glutamate dehydrogenase and by allozyme analysis. The isolates were heterogeneous, but all showed affinity with genetic Assemblage A--one of two major assemblages defined previously by analysis of Giardia from humans. Three distinct genotypes were evident. Ten isolates (eight axenic and two established in suckling mice) from an alpaca, pig, horse, cattle and sheep were indistinguishable from human-derived G. intestinalis belonging to a previously designated genetic group (Group I). This genotype seems to have broad host specificity, including a zoonotic potential for humans. Five isolates (two axenic and three established in suckling mice) from an alpaca, a horse and sheep had close affinity with human-derived Group I and Group II G. intestinalis genotypes. The other 16 isolates (comprising both axenic and suckling mouse-propagated cultures derived from cattle, sheep, alpaca, a goat and pigs in Australia and Europe) differed from all other Giardia with "duodenalis" morphology that have been exam...Continue Reading

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Citations

Jan 23, 2004·The Journal of Eukaryotic Microbiology·Monica SantinJames M Trout
Sep 10, 2005·Applied and Environmental Microbiology·Una M RyanBrown Besier
Feb 11, 2010·Epidemiology and Infection·A S BreathnachP D Butcher
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Jun 29, 2021·Parasite : Journal De La Société Française De Parasitologie·Huan TangYe Cao
Aug 12, 2021·Clinical Microbiology Reviews·Rodney D Adam

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