{Reference Type}: Case Reports {Title}: Polymicrobial Septic Peritonitis Caused by Enterococcus faecium and Enterococcus casseliflavus following Uterine Rupture in a Goat. {Author}: Dos Santos GS;Francischetti GS;Garritano NF;Hagen SCF;Cagnim AF;Catão-Dias JL;Ferreira Neto JS;Sucupira MCA;Heinemann MB; {Journal}: Vet Sci {Volume}: 11 {Issue}: 6 {Year}: 2024 Jun 12 {Factor}: 2.518 {DOI}: 10.3390/vetsci11060268 {Abstract}: A one-year-old female miniature goat was presented to an emergency service after calving a dead goatling. Physical and ultrasonographic examination revealed the presence of a viable fetus; therefore, the goat was submitted to an emergency cesarean section. In the postoperative period, the animal had septic peritonitis caused by Enterococcus faecium and Enterococcus casseliflavus. Both bacterial strains showed contrasting antimicrobial resistance profiles. Laparohysterectomy and abdominal cavity lavage were performed, but, once the animal had adhesions and necrotic lesions in abdominal organs, euthanasia was executed. A post-mortem examination revealed fibrino-necrotic septic peritonitis secondary to uterine rupture. To the authors' knowledge, this is the first detailed report of polymicrobial septic peritonitis in a miniature goat and the first report of septic peritonitis caused by E. faecium and E. casseliflavus.