Prevalence of Very Low Numbers of Potential Pathogenic Isolates of Yersinia enterocolitica and Yersinia intermedia in Traditional Fast Foods of India

In this study, an incidence pattern of 1.7% for
Yersinia enterocolitica and 2.5% for Y. intermedia were
observed in an analysis of 120 diversified food samples
collected from the local market of Mysore, Southern India.
Two native isolates characterized as Y. enterocolitica
belonged to biotype 1B and revealed the presence of major
virulence related traits such as regulator of virulence,
mucoid Yersinia factor regulator, attachment invasion
locus, heat stable enterotoxin, Yersinia type II secretory
system and phospholipase A in PCR. Force type neighborjoining
phylograms generated for Y. enterocolitica based
on PCR amplicons of rovA and ypl showed 100% homology
with two to three strains of Y. enterocolitica and about
75% homology with several strains of Y. pestis.