Enterococcus faecium is a Gram-positive bacterium. It can be commensal (innocuous, coexisting organism) in the gastrointestinal tract of humans and animals but it may also be pathogenic.
E. faecium is a human pathogen that causes nosocomial bacteremia, surgical wound infection, endocarditis, and urinary tract infections. Nosocomial infections are those acquired in medical setting during treatment of a prior complaint. The normal habitat includes the gastrointestinal tract of a multitude of animals but it can also be found in the oral cavity and vaginal tract.
Frequently, it is multi-drug resistant.