<i>Klebsiella oxytoca</i> as a Causative Organism of Antibiotic-Associated Hemorrhagic Colitis

Abstract

Our fulfillment of Koch's postulates for cytotoxin-producing K. oxytoca suggests that it is the causative organism in at least some cases of antibiotic-associated hemorrhagic colitis. Infection with K. oxytoca should be considered in patients with antibiotic-associated colitis who are negative for C. difficile.