title: Patterns of antibiotic resistance among group B streptococcus isolates: 2001-2004.
abstract: The objectives were to determine the prevalence of group B streptococcus (GBS) and to characterize antibiotic resistance patterns. All pregnant women presenting to the triage units at two urban hospitals during three intervals from 2001 to 2004 were included. Each interval lasted approximately four weeks. Swabs were inoculated into selective broth and cultured on tryptic soy agar with 5% sheep blood. GBS was identified using the StrepTex latex agglutination system. GBS positive cultures were tested for their resistance to ampicillin, erythromycin, clindamycin, and cefazolin. GBS was isolated from 154 (12.2%) of 1264 swabs collected during the study period. African-American women were more likely to be colonized with GBS than Caucasians and Hispanics. Resistance to routinely administered antibiotics was common, but there were no statistically significant increases in resistance to antibiotics over the study period. Ongoing surveillance of antibiotic resistance patterns is important in determining optimal prophylaxis and therapy.
authors.affiliation: Department of Obstetrics, Gynecology and Reproductive Sciences, University of Texas Medical School at Houston, Houston, TX 77030, USA.
authors.forename: Lubna
authors.initials: L
authors.lastname: Chohan
authors.forename: Lisa M
authors.initials: LM
authors.lastname: Hollier
authors.forename: Karen
authors.initials: K
authors.lastname: Bishop
authors.forename: Charles C
authors.initials: CC
authors.lastname: Kilpatrick
mesh_terms: D001741:Black or African American; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D044383:Black People; D024881:Drug Resistance, Bacterial; D005260:Female; D006630:Hispanic or Latino; D006801:Humans; D008826:Microbial Sensitivity Tests; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000453:epidemiology* / Q000208:ethnology / Q000382:microbiology; D015995:Prevalence; D013290:Streptococcal Infections / Q000453:epidemiology* / Q000208:ethnology / Q000382:microbiology; D013292:Streptococcus agalactiae / Q000187:drug effects* / Q000302:isolation & purification; D044465:White People
chemical_list: D000900:Anti-Bacterial Agents