title: Evaluation of three commercial broth media for pigment detection and identification of a group B Streptococcus (Streptococcus agalactiae).
abstract: Detection of group B Streptococcus (GBS) strains at various bacterial concentrations was evaluated using three pigment-producing broth media. At 10(3) CFU/ml, StrepB carrot broth (SBCB), Granada instant liquid biphasic (IGLB), and Northeast Laboratory GBS screening medium (NEL-GBS) showed 100% detection, but at the lower bacterial counts, SBCB and IGLB were more sensitive than NEL-GBS after 24 h.
authors.affiliation: Streptococcus Laboratory, Respiratory Diseases Branch, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA.
authors.forename: Maria da Glória
authors.initials: Mda G
authors.lastname: Carvalho
authors.forename: Richard
authors.initials: R
authors.lastname: Facklam
authors.forename: Delois
authors.initials: D
authors.lastname: Jackson
authors.forename: Bernard
authors.initials: B
authors.lastname: Beall
authors.forename: Lesley
authors.initials: L
authors.lastname: McGee
mesh_terms: D001431:Bacteriological Techniques / Q000379:methods; D015169:Colony Count, Microbial; D003470:Culture Media; D006801:Humans; D010860:Pigments, Biological / Q000378:metabolism*; D011933:Reagent Kits, Diagnostic; D012680:Sensitivity and Specificity; D013290:Streptococcal Infections / Q000175:diagnosis / Q000382:microbiology; D013292:Streptococcus agalactiae / Q000145:classification / Q000378:metabolism
chemical_list: D003470:Culture Media; D010860:Pigments, Biological; D011933:Reagent Kits, Diagnostic