title: The clinical comparison of Oxoid Signal with Bactec blood culture systems for the detection of streptococcal and anaerobic bacteraemias.
abstract: Blood cultures were taken from 47 patients 1-2 min after dental extraction. These samples were tested by the radiometric Bactec 460 and Oxoid Signal systems for the detection of streptococcal and anaerobic bacteraemias. Streptococci were isolated from 19 (40%) patients and anaerobes from 15 (32%). In this study the Oxoid Signal system was significantly better for isolating oral anaerobes than the Bactec system; five isolates were obtained with the Bactec system and 14 with the Signal system. There was no significant difference in the isolation of streptococci between these two systems (Bactec 14, Oxoid Signal 10). The contamination rate was 4.1% for Bactec and 7.5% for the Oxoid Signal system.
authors.affiliation: Department of Medical Microbiology, Charing Cross and Westminster Medical School, London.
authors.forename: N A
authors.initials: NA
authors.lastname: Hutchinson
authors.forename: F D
authors.initials: FD
authors.lastname: Thomas
authors.forename: D C
authors.initials: DC
authors.lastname: Shanson
mesh_terms: D000328:Adult; D016470:Bacteremia / Q000175:diagnosis* / Q000382:microbiology; D001421:Bacteria, Anaerobic / Q000302:isolation & purification*; D001769:Blood / Q000382:microbiology*; D003470:Culture Media; D005188:False Negative Reactions; D006801:Humans; D013290:Streptococcal Infections / Q000175:diagnosis* / Q000382:microbiology; D013291:Streptococcus / Q000302:isolation & purification*
chemical_list: D003470:Culture Media