In animals, Y.<unk>  can cause tuberculosis-like symptoms, including localized tissue necrosis and granulomas in the spleen, liver, and lymph nodes. In humans, symptoms of Far East scarlet-like fever are similar to those of infection with<unk>  enterocolitica (fever and right-sided abdominal pain), except that the diarrheal component is often absent, which sometimes makes the resulting condition difficult to diagnose. Y.<unk>  infections can mimic appendicitis, especially in children and younger adults, and, in rare cases, the disease may cause skin complaints (erythema nodosum), joint stiffness and pain (reactive arthritis), or spread of bacteria to the blood (bacteremia). Far East scarlet-like fever usually becomes apparent five to 10 days after exposure and typically lasts one to three weeks without treatment. In complex cases or those involving immunocompromised patients, antibiotics may be necessary for resolution; ampicillin, aminoglycosides, tetracycline, chloramphenicol, or a cephalosporin may all be effective. The recently described syndrome "Izumi-fever" has been linked to infection with Y.<unk> . The symptoms of fever and abdominal pain mimicking appendicitis (actually from mesenteric lymphadenitis) associated with Y.<unk>  infection are not typical of the diarrhea and vomiting from classical food poisoning incidents. Although Y.<unk>  is usually only able to colonize hosts by peripheral routes and cause serious disease in immunocompromised individuals, if this bacterium gains access to the blood stream, it has an LD50 comparable to Y. pestis at only 10 CFU.
Yersinia pseudotuberculosis
Yersinia enterocolitica
Yersinia rohdei
Campylobacter upsaliensis
Yersinia aleksiciae
Enteroaggregative Escherichia coli
Salmonella enterica subsp. enterica
Vibrio cholerae