Study Evaluating the Etiology of Intra-Abdominal Infections

- A case will be defined as an intra-abdominal abscess or peritoneal fluid culture that
will be positive for enterococcus or an enterococcal bacteriemia in association with
an intra-abdominal source of infection.

- A control will be defined as a culture-positive intra-abdominal infection or
bacteriemia due to an intraabdominal focus where enterococci have not been isolated.