Genotypic Analysis of Toxoplasma gondii Isolates from Pigs

• DOI: 10.2307/3284743
• Publication Date: 2006-05-06T14:29:59Z
• Authors: Ricardo Mondragon; Daniel K. Howe; J. P. Dubey; L. David Sibley
• Keywords: Toxoplasmosis

To determine the prevalence of 3 primary clonal lineages Toxoplasma gondii (strain types I, II, and III) in a potential food source infection for humans, we analyzed 43 isolates T. that had been collected from pigs at an abattoir Iowa. Parasites were harvested as vitro-grown tachyzoites, their genotypes determined SAG1 SAG2 loci. On basis allele identified locus, grouped into 1 lineages. Type II strains by far most prevalent, accounting 83.7% isolates. The type III genotype was only 16.3% These prevalences differ significantly previous sampling animals but are similar to frequencies with which they occur human disease cases. Similar previously characterized strain P89, P62 P105 appeared have recombinant genotypes. I not although these shown account approximately 10-25% toxoplasmosis cases humans.