Incidence of Yersinia enterocolitica in raw milk in Beni-Suef city

ABSTRACT

A total of 50 raw milk samples collected from dairy shops in Beni-Suef city, were examined for the presence of small letter STR. enterocolitica. Four enrichment procedures were used modified Rappaport Broth [MRB] at room temperature [23 +/- 1 C] for 5 days, Christenson's cold enrichment [CE] at 4 C for 14 days, CE followed by MRB at 23 +/- 1 C for 2 days and Phosphate buffered saline [PBS] at 4 C for 21 days. Isolation of Y. enterocolitica was made on CIN agar plate. One of the examined samples [2%] was positive. The public health importance of Y. enterocolitica as well as the enrichment procedures used in isolation from raw milk were discussed