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Disease Name: Yersiniosis

Quick Links

Please review the Idaho Reportable Disease Rules (IDAPA 16.02.10) for the most up-to-date information.

Yersinia enterocolitica (Yersiniosis): http://www.cdc.gov/yersinia/index.html

Overview / Case Definition

An illness of variable severity commonly manifested by diarrhea, abdominal pain, nausea, and sometimes vomiting. Asymptomatic infections may occur, and the organism may cause extraintestinal infections.

Yersinia pseudotuberculosis, a gram negative bacillary bacterium comprised of six serotypes with four subtypes, and Yersinia enterocolitica with more than 34 serotypes. Most known human infections are associated with Y. enterocolitica serogroups O:3, O:5,27, O:8, and O:9. Y. enterocolitica infections present more commonly with a gastroenteritis syndrome, and Y. pseudotuberculosis with abdominal pain.


Restrictions - Food Service Facility

A symptomatic person must be managed under IDAPA 16.02.19, “The Idaho Food Code.”  An individual must be asymptomatic for nausea or vomiting for at least 24 hours before restrictions may be lifted.


Within 3 working days

Reportable by Healthcare and Labs:

Reportable by Food Service Facility:

Suspect Reportable:

Reporting Timeframe: Within 3 working days

Diagnosis / Testing

Yersiniosis usually is diagnosed by detecting the organism in the stool of an infected person. Many laboratories do not routinely test for Yersinia, so it is important to notify laboratory personnel when yersiniosis is suspected so that special tests can be done. The organism can also be recovered from other sites, including the throat, lymph nodes, joint fluid, urine, bile, and blood.


Additional Information

Yersinia enterocolitica (Yersiniosis): http://www.cdc.gov/yersinia/index.html

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