Aim: The aim of this study was to determine the prevalence of various serotypes in chickens, carcass contact surfaces as well as environmental samples collected from wet markets and small scale processing plant.
Materials And Methods: A total of 182 poultry and environmental samples were collected at random on separate occasions from wet markets and small scale processing plant, during the period of October 2014 to July 2015 in Penang and Perlis, Malaysia. The samples were analyzed for the presence of using ISO 6579:2002 conventional culture-based method.