The objectives of this study, therefore, were to determine the
prevalence of E. coli and enterococci in RTE cooked chicken products
and in their environment of a production factory, and to identify
these contamination sources. The zone concept was employed
in which environmental surfaces were divided into zones. Correlation
coefficients for the contamination of E. coli and enterococci
amongst the surfaces of all zones, and between the food contact
surfaces and the product, were determined. In addition, a mathematical
model was established to examine the effectiveness of
the cleaning and sanitizing procedure of the factory.