Because certain lymph nodes may be incorporated in food products, the presence of Salmonella enterica in these tissues could pose a food safety risk. We designed this two-part study to assess the prevalence of Salmonella in prescapular lymph nodes from normal slaughtered swine. Prescapular lymph nodes were collected from 300 systematically selected pigs in study 1 and, in study 2, from 75 pigs distributed among 10 herds. For study 2, pooled bacterial cultures were also completed on ileocecal lymph nodes, combining tissue from five pigs per pool (n = 60 pools). No Salmonella was detected in study 1 among prescapular lymph nodes (95% confidence interval, 0.0 to 1.16%). Salmonella was not detected in 75 prescapular lymph nodes from study 2, although Salmonella was detected in 5 of 10 herds in ileocecal lymph nodes. We conclude that prescapular lymph nodes posed a limited food safety risk in this population of pigs.
Salmonella enterica in Superficial Cervical (Prescapular) and Ileocecal Lymph Nodes of Slaughtered Pigs
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PETER B. BAHNSON, CLAUDIA SNYDER, LATIFA M. OMRAN; Salmonella enterica in Superficial Cervical (Prescapular) and Ileocecal Lymph Nodes of Slaughtered Pigs. J Food Prot 1 April 2006; 69 (4): 925–927. doi: https://doi.org/10.4315/0362-028X-69.4.925
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