title: Antimicrobial susceptibility patterns among viridans group streptococcal isolates from infective endocarditis patients from 1971 to 1986 and 1994 to 2002.
abstract: To determine whether changes in antimicrobial resistance have occurred among viridans group streptococci, we retrospectively examined 50 viridans group streptococcal isolates recovered from patients with infective endocarditis over 3 decades. Resistance rates (percent resistant isolates 1971 to 1986 and 1994 to 2002) were as follows: levofloxacin, 0 and 9; penicillin and clindamycin, 0 and 4; and erythromycin and azithromycin, 11 and 26, respectively.
authors.affiliation: Division of Infectious Diseases, Mayo Clinic College of Medicine, 200 First St. SW, Rochester, MN 55905, USA.
authors.forename: Rajesh M
authors.initials: RM
authors.lastname: Prabhu
authors.forename: Kerryl E
authors.initials: KE
authors.lastname: Piper
authors.forename: Larry M
authors.initials: LM
authors.lastname: Baddour
authors.forename: James M
authors.initials: JM
authors.lastname: Steckelberg
authors.forename: Walter R
authors.initials: WR
authors.lastname: Wilson
authors.forename: Robin
authors.initials: R
authors.lastname: Patel
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D004352:Drug Resistance, Microbial; D004697:Endocarditis, Bacterial / Q000382:microbiology*; D006801:Humans; D008826:Microbial Sensitivity Tests; D011159:Population Surveillance; D012189:Retrospective Studies; D020713:Vancomycin Resistance; D034363:Viridans Streptococci / Q000187:drug effects*
chemical_list: D000900:Anti-Bacterial Agents