Pathogenic microbiological baseline survey of pork carcasses in Taiwan.

JOURNAL OF FOOD PROTECTION(2013)

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Abstract
From 2004 to 2010, pork carcass swabs from state-inspected slaughter plants in Taiwan were intermittently analyzed to determine the prevalence of selected pathogenic microorganisms associated with foodborne illness. The prevalences of Staphylococcus aureus each year from 2006 to 2010 were 6.6, 10.8, 5.1, 6.4, and 7.4%, respectively, while those of Listeria monocytogenes were 1.2% in 2004, 1.3% in 2005, and 3.5% in 2008. The prevalences of Clostridium perfringens were 0.9% in 2004, 3.2% in 2005, and 1.1% in 2008. Campylobacter jejuni and Campylobacter coli had a higher recovery rate than the other surveyed microorganisms, with prevalences during 2004, 2005, and 2008 of 21.1, 13.7, and 8.1%, respectively. Salmonella strains were analyzed each year, and their prevalences ranged between 3.0 and 6.9%. Derby, Typhimurium, Anatum, Choleraesuis, and Agona were the five serovars most frequently identified among the Salmonella isolates. Escherichia coli O157:H7 was not detected in 2004, 2005, or 2010. Routine baseline surveying of pork carcasses to determine the prevalence of selected pathogens of concern for food safety can provide valuable information regarding the effectiveness of the slaughtering procedures or the need for interventions.
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pork carcasses
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