title: Vancomycin-resistant streptococci or Leuconostoc sp.
abstract: Two strains of gram-positive cocci highly resistant to vancomycin (MICs of 512 and 1,024 micrograms/ml) were isolated from blood cultures in two compromised patients. These organisms were identified as Leuconostoc spp. Leuconostoc spp. are gram-positive cocci found in vegetables and dairy products; they had not been isolated previously from clinical specimens. The susceptibility of eight Leuconostoc spp. strains, including the two clinical isolates, to 23 antimicrobial agents was determined.
mesh_terms: D000328:Adult; D004352:Drug Resistance, Microbial; D005260:Female; D006801:Humans; D007121:Immunocompetence; D007934:Leuconostoc / Q000187:drug effects* / Q000302:isolation & purification; D008180:Lupus Erythematosus, Systemic / Q000382:microbiology; D008297:Male; D014640:Vancomycin / Q000494:pharmacology*
chemical_list: D014640:Vancomycin