Salmonella, a genus of rod-shaped, Gram-negative, non-spore forming, predominantly motile enterobacteria, cause more than 104 cases of infections per year in United States. Salmonellosis is an important medical problem, as while infection with non- typhi Salmonella often causes mild self-limited ill- ness, severe sequelae including death may occur, particularly in immunocompromised hosts. It has been reported that the incidence of salmonellosis is higher in developing than in developed countries and in developing countries food handlers may be a reservoir for further transmission of infection