title: [Occurrence and drug-resistance of beta-hemolytic streptococci].
abstract: The aim of this study was the analysis of drug-resistance and frequency appearance of beta-hemolytic streptococci strains which were isolated in 2003-2005 in the University Hospital at the L. Rydygier Collegium Medicum in Bydgoszcz University of Nicolaus Copernicus in Toruń. Among investigeted beta-hemolytic streptococci the most frequency isolated species was S. agalactiae. All isolates examined in our study were susceptible to penicillin, the higest rate of resistance was found for tetracycline. The rates of resistence to macrolide-lincosamide-streptogramin B (phenotyp MLS(B)) were as follows: S. agalactiae (18.7%), S. pyogenes (10.1%), group G streptococci (10.6%) and group C streptococci (8.0%). In our study we presented also a special case patient from which in investigeted period S. agalactiae was isolated twenty eight times. For ten chromosomal DNA isolated from this patient three different PFGE profiles were obtained.
authors.affiliation: Katedra i Zakład Mikrobiologii Collegium Medicum im. Ludwika Rydygiera w Bydgoszczy, Uniwersytetu Mikołaja Kopernika w Toruniu. kizmikrob@cm.umk.pl
authors.forename: Dorota
authors.initials: D
authors.lastname: Mikołajczyk
authors.forename: Anna
authors.initials: A
authors.lastname: Budzyńska
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Kaczmarek
authors.forename: Eugenia
authors.initials: E
authors.lastname: Gospodarek
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology; D024881:Drug Resistance, Bacterial; D006801:Humans; D018942:Macrolides / Q000494:pharmacology; D008826:Microbial Sensitivity Tests; D011044:Poland; D012189:Retrospective Studies; D012703:Serotyping; D013290:Streptococcal Infections / Q000188:drug therapy* / Q000453:epidemiology; D013292:Streptococcus agalactiae / Q000145:classification / Q000187:drug effects* / Q000302:isolation & purification*; D013297:Streptococcus pyogenes / Q000145:classification / Q000187:drug effects* / Q000302:isolation & purification*
chemical_list: D000900:Anti-Bacterial Agents; D018942:Macrolides