The frequency of virulence genes in Yersinia enterocolitica strains isolated from laying eggs consumed in the city of Arak

Eggs are one of the common sources of infection transmission to humans and their contamination with germs such as Yerisina Entrocolitica may be followed by side-effects of them. The present study is conducted to identify Yersinia entrocolitica in eggs based on two methods of culture and PCR. Within a period between January 2015 to May 2016, 400 eggs were bought randomly from egg stores in Arak County and they were tested to identify Yersinia Entrocolitica based on bacteriology method. The species of this pathogen were separated and put to PCR test in order to determine Yersinia entrocolitica. In all,48 out of 400 sampled eggs, (12%) Yersinia entrocolitica was separated based on bacteriology method which in PCR test, 8 out of 48 samples which were reported positive in terms of serotype O3.