Pigs are considered to be to be the main reservoir for Yersinia enterocolitica and pork and pork products the main source of human infection. While most foodborne pathogens tend to come from a variety of sources, 100% of the attributable Yersinia outbreaks reported in the United States from 1999 through 2008 were caused by pork.
It turns out there is a lot of confusion about Yersinia enterocolitica. Because it’s not one of the top pathogens responsible for foodborne illness in the United States, food safety advocates and researchers don’t pay a whole lot of attention to it.
The Yersinia enterocolitica bacteria was the main offender, present in a whopping 69% of the pork tested. Although not as commonly talked about as E.coli or salmonella, Yersinia enterocolitica causes infections in 100,000 Americans every year.
Researchers at Tufts University School of Medicine and the Sackler School of Graduate Biomedical Sciences at Tufts have identified how one type of bacteria, Yersinia, immobilizes the immune system...
Keeping up with the latest outbreaks.
Infection is most often acquired by eating contaminated food, especially raw or undercooked pork products. The preparation of raw pork intestines (chitterlings) may be particularly risky.
Diagnosis of yersiniosis begins with isolation of the organism from the human host's feces, blood, or vomit, and sometimes at the time of appendectomy. Confirmation occurs with the isolation, as well as biochemical and serological identification, of Y. enterocolitica from both the human host and the ingested foodstuff. Diarrhea is reported to occur in about 80% of cases; abdominal pain and fever are the most reliable symptoms.
Because of the difficulties in isolating yersiniae from feces, several countries rely on serology.
Yersiniosis is a relatively uncommon infection contracted through the consumption of undercooked meat products (especially pork), unpasteurized milk, or contaminated water.
Yersinia enterocolitica is found in meats (pork, beef, lamb, ect.), fish, and raw milk. Exact reason for food contamination is unknown . Human-to-human transmission is rare, however, incidences have been observed and reported.
Yersinia enterocolitica and Yersinia pseudotuberculosis are bacteria known to cause foodborne gastroenteritis in humans. The pathogen can cause diarrhoea and pain that may be mistaken for appendicitis. More invasive illness occasionally occurs, and post-infection arthritis may occur in a small proportion of cases.
Not all Y. enterocolitica strains can cause human illness.
Food poisoning with a difference...