title: Neisseria gonorrhoeae penicillin susceptibility: a comparison of three testing methods.
abstract: The 3-disc sensitivity method and the PDM Epsilometer (E-Test) were compared against the agar plate dilution reference method for the testing of N. gonorrhoeae penicillin susceptibility. Forty-six clinical isolates and five reference strains were examined. Both methods showed a high level of correlation in the detection of both high and moderate levels of resistance and both should be considered suitable for routine use. The E-Test had the advantage of producing a precise breakdown of the level of moderate resistance and may have a role to play in the diagnostic laboratory for this type of work.
authors.affiliation: Department of Medical Microbiology, St George's Hospital, London, England, UK.
authors.forename: P A
authors.initials: PA
authors.lastname: Hitchcock
mesh_terms: D006069:Gonorrhea / Q000188:drug therapy; D008826:Microbial Sensitivity Tests; D009344:Neisseria gonorrhoeae / Q000187:drug effects*; D010406:Penicillins / Q000494:pharmacology*
chemical_list: D010406:Penicillins