title: Non-beta-lactamase-producing penicillin-resistant Enterococcus faecium in a clinical setting.
abstract: Six clinical isolates of Enterococcus faecium highly resistant to penicillin are reported. These strains did not produce beta-lactamase and no plasmid DNA could be detected. It is postulated that the mechanism of resistance is one or more chromosomally mediated alterations of penicillin-binding proteins.
authors.affiliation: Department of Microbiology and Infectious Disease, Sir Mortimer B Davis - Jewish General Hospital and McGill University, Montreal, Quebec.
authors.forename: D
authors.initials: D
authors.lastname: Eymard
authors.forename: A
authors.initials: A
authors.lastname: Dascal
authors.forename: J
authors.initials: J
authors.lastname: Hiscott
authors.forename: S
authors.initials: S
authors.lastname: Gioseffini
authors.forename: J
authors.initials: J
authors.lastname: Stevenson
authors.forename: J
authors.initials: J
authors.lastname: Portnoy
authors.forename: J
authors.initials: J
authors.lastname: Mendelson