title: Antibiotic resistance of bacterial strains isolated from children in Child Health Center, Warsaw.
abstract: This study examines the antibiotic susceptibility of 1792 bacterial strains isolated from hospitalized children between January and December 1993. A total of 1015 Gram-negative rods represented by members of Enterobacteriaceae family (770) and nonfermenters (245) were isolated. The most resistant strains were noticed among Klebsiella pneumoniae and Enterobacter cloacae. From 38% to 46% of K. pneumoniae strains were resistant to third-generation cephalosporins, but all of them were sensitive to imipenem. From 60% to 80% of E. cloacae isolates were resistant to all beta-lactams, but sensitive to imipenem. Resistance of P. aeruginosa to aminoglycosides varied from 30% for gentamicin to 5% for amikacin. About 40% of P. aeruginosa strains were resistant to carbenicillin, and 25% to azlocillin and piperacillin, but only two strains were resistant to ceftazidime and imipenem. Among Gram-positive cocci the most frequently encountered were coagulase-negative staphylococci, followed by Staphylococcus aureus and Enterococcus faecalis. The methicillin-resistant strains of coagulase-negative staphylococci and S. aureus consisted 74.8% and 34%, respectively. All strains of methicillin-resistant coagulase-negative staphylococci and S. aureus were sensitive to vancomycin.
authors.affiliation: Department of Clinical Microbiology, Children's Memorial Hospital, Dzieci Polskich Street 20, PL 04-736 Warsaw, Poland.
authors.forename: D
authors.initials: D
authors.lastname: Dzierzanowska
authors.forename: U
authors.initials: U
authors.lastname: Lopaciuk
authors.forename: W
authors.initials: W
authors.lastname: Kamińska
authors.forename: J
authors.initials: J
authors.lastname: Wieczyńska
authors.forename: A
authors.initials: A
authors.lastname: Pawińska
authors.forename: J
authors.initials: J
authors.lastname: Patzer