Plesiomonas shigelloides

Plesiomonas shigelloides is a Gram-negative, rod-shaped bacterium which has been isolated from freshwater, freshwater fish, and shellfish and from many types of animals including cattle, goats, swine, cats, dogs, monkeys, vultures, snakes, and toads.

Infections from this organism cause gastroenteritis followed by septicemia in immune deficient patients. It is placed among the Enterobacteriaceae.