Diagnosis and Treatment
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.
Yersiniosis usually goes away on its own without antibiotic treatment. However, antibiotics may be used to treat more severe or complicated infections.