Pseudotuberculosis is a bacterial infection that affects both humans and animals. The term pseudotuberculosis comes from the fact that the infection causes symptoms similar to those of tuberculosis, but the two are caused by different types of bacteria. There are several synonyms for pseudotuberculosis, including Yersinia pseudotuberculosis infection, Yersiniosis, and yersinia enterocolitica. Yersinia pseudotuberculosis is the bacteria that causes the infection, and Yersinia enterocolitica is another type of Yersinia bacteria that can cause similar symptoms. Pseudotuberculosis can cause fever, abdominal pain, and diarrhea. Early diagnosis and treatment are important for preventing complications and spreading the infection to others.