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Analysis of 370 offal samples from 15 US pork-processing facilities detected Yersinia enterocolitica-positive (2.4%) and Salmonella-positive (21.8%) samples and mesophilic aerobic plate counts > 107 colony-forming units/g (3.2%). A risk assessment showed intestine (20%), brain (21%), liver and heart (73%), and kidney (87%) sampling batches were acceptable for human consumption.
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Erickson et al. (2019) studied this question.
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