Surveillance on Food-Borne Pathogens in Jiangsu Province in 2007

Objective To understand the contamination situation of main food-borne pathogens in food in order to identify high-risk foods, and to provide the basis for the prevention and control of food-borne diseases in Jiangsu province.Method Salmonella, Listeria monocytogenes, Escherichia coli O157∶H7, Campylobacter jejuni, and Vibrio parahaemolyticus were isolated. The biochemical characteristic and serotype were tested according to GB/T 4789.Results 804 food samples in 8 categories including uncooked meat of livestock and poultry, cooked meat products, vegetable salad, and aquatic products were tested. 113 bacteria strains were isolated, and the overall positive rate of 14.1%. There were 33 strains of Salmonella (4.1% positive rate), 41 strains of Listeria monocytogenes (positive rate 5.6%), 13 strains of Vibrio parahaemolyticus (the highest rate 11.2%), Staphylococcus aureus (positive rate) 15.9%, 2 strains of Escherichia coli O157∶H7 (positive rate 0.41%) among them. V.parahaemolyticus and Enterobacter sakazakii were not found. Further, nine serotypes were isolated in 33 strains of Salmonella. S.derby was dominated, followed by S.lomita and S.anatis.Conclusion Foods were contaminated by food-borne pathogens in Jiangsu province. Aquatic products and uncooked meat were the main kinds of contaminated food. However, there was higher risk that human diseases suffered from food-borne pathogens caused by cooked meat and raw aquatic products.