Chronic diarrhea caused by Klebsiella oxytoca toxin producer following antibiotic-associated hemorrhagic colitis: successful treatment by faecal microbiota transplant.

Klebsiella oxytoca is a Gram-negative bacterium found in faecal microbiota and known to cause several infections in humans, including antibiotic-associated hemorrhagic colitis. We present here a case of colitis caused by K. oxytoca toxin producing strains that evolved in chronic diarrhea successfully treated by fecal microbiota transplant.