title: Isolation of three strains of beta-lactamase-producing Enterococcus faecalis in Argentina.
abstract: Of the 90 strains of Enterococcus spp. isolated in an Argentine laboratory in the period from January to July 1989, three were identified as beta-lactamase-producing Enterococcus faecalis. According to the literature reviewed, these appear to be the first beta-lactamase-positive strains of Enterococcus isolated outside the USA. They differed from most beta-lactamase-producing strains already described in that they were susceptible to low concentrations of macrolides. All three strains were resistant to high concentrations of aminoglycosides.
authors.affiliation: Hospital Nacional de Pediatría Prof. Dr. Juan P. Garrahan, Laboratorio de Microbiología, Buenos Aires, Argentina.
authors.forename: H
authors.initials: H
authors.lastname: Lopardo
authors.forename: L
authors.initials: L
authors.lastname: Casimir
authors.forename: C
authors.initials: C
authors.lastname: Hernández
authors.forename: E A
authors.initials: EA
authors.lastname: Rubeglio
mesh_terms: D000617:Aminoglycosides; D000667:Ampicillin / Q000494:pharmacology; D000900:Anti-Bacterial Agents / Q000494:pharmacology; D001118:Argentina; D004352:Drug Resistance, Microbial; D013293:Enterococcus faecalis / Q000187:drug effects / Q000201:enzymology / Q000302:isolation & purification*; D001618:beta-Lactamases / Q000096:biosynthesis*
chemical_list: D000617:Aminoglycosides; D000900:Anti-Bacterial Agents; D000667:Ampicillin; D001618:beta-Lactamases