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pp.327-332
The prevalence and serotype of food-borne pathogens was investigated from 888 samples of chilled meat, 222 samples of packed frozen meat and 117 samples of imported frozen meat during the period from March 1996 to October 1998. Isolation rates of pathogens associated with food poisoning were revealed in order of Staphyloccus aureus, Campylobacter jejuni/coli, Listeria monocytogenes and Salmonella spp, but Escherichia coli O157:H7 was not isolated in all of the meat samples. Amusingly, Cczmpylobacter jejuni/coli were isolated highly in refrigerated meat, but was not isolated in packed frozen meat. L. monocytogenes was encounted higher isolation frequency in packed frozen chicken meat than in refrigerated chicken meat. In the distribution of serotypes of isolates, most isolates of Sta. aureus classified as enterotoxin type C and D. All of the Salmonella spp. isolated from pork were diagnosed group A and most of isolates from chicken meat were grouped B and D. Most of L. monocytogenes isolated from chicken meat were grouped type 1 and a few number of isolates classified as type 4.
