"The preparation of raw pork intestines (chitterlings) may be particularly risky."
"After handling raw chitterlings, clean hands and fingernails scrupulously with soap and water before touching infants or their toys, bottles, or pacifiers. Someone other than the foodhandler should care for children while chitterlings are being prepared."
Disease Listing, Yersinia enterocolitica, General Info | CDC Bacterial, Mycotic Diseases
"The major animal reservoir for Y. enterocolitica strains that cause human illness is pigs, but other strains are also found in many other animals including rodents, rabbits, sheep, cattle, horses, dogs, and cats. In pigs, the bacteria are most likely to be found on the tonsils."