Yersinia pseudotuberculosis is infrequently diagnosed as a cause of human disease. The most common clinical manifestation of human infection is mesenteric lymphadenitis, which may mimic appendicitis. Human infections have most frequently been reported from Europe and most frequently seen in young male patients in the first two decades of life.1 We recently isolated this organism from the feces of a female newborn who had severe abdominal colic.
Report of a Case.—A 29-day-old female infant was hospitalized at Lallie Kemp Charity Hospital, Independence, La, for severe abdominal colic of three weeks' duration. She had been examined 13 days previously for irritability and vomiting. Blood, urine, and CSF cultures were sterile. A stool culture was not obtained. In the interim, she had stopped vomiting and was afebrile. However, she had borborygmi and intermittent episodes (one to ten per hour) of severe colic that lasted two to three minutes at a