<prompt> Answer this question truthfullyWhat is an infection caused by Yersinia enterocolitica?  <response>: <reason> Yersinia enterocolitica is a species of gram-negative coccobacillus-shaped bacterium, belonging to the family Enterobacteriaceae. Primarily a zoonotic disease cattle, deer, pigs, and birds, animals which recover frequently become asymptomatic carriers of the disease. 