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In Vitro Activity of p -Hydroxybenzyl Penicillin (Penicillin X) and Five Other Penicillins Against Neisseria gonorrhoeae : Comparisons of Strains from Patients with Uncomplicated Infections and from Women with Pelvic Inflammatory Disease

Year: 1977

Type: article

Abstract: Minimum inhibitory concentrations (MICs) of six penicillins against 95 strains of Neisseria gonorrhoeae from patients with uncomplicated anogenital infections and 22 strains from women with pelvic inflammatory disease were determined by an agar plate dilution method, using an inocula replicator. Against all 117 strains, the order of activity observed was: BL-P1654 > penicillin X > penicillin G > ampicillin > amoxicillin = carbenicillin. MICs against strains isolated from women with gonococcal pelvic inflammatory disease were significantly higher than those against isolates from uncomplicated infections: BL-P1654, P < 0.001; penicillin X, P < 0.001; penicillin G, P < 0.001; ampicillin, P < 0.001; and amoxicillin, P < 0.05. MICs of penicillin G were >/=0.125 mug/ml against 33 (36%) of the 92 strains from patients with uncomplicated infections, as contrasted with 15 (68%) of the 22 isolates from women with pelvic inflammatory disease (P < 0.01). The means of the MICs of penicillin G were 0.06 mug/ml for the former and 0.14 mug/ml for the latter.

Source: Antimicrobial Agents and Chemotherapy

DOI: 10.1128/aac.12.1.31

Authors: Stephen G. Sackel, Susan Alpert, Bernard Rosner, William M. McCormack, Maxwell Finland

Institution: Harvard University

Language: English

Topic: Reproductive tract infections research

Subfield: Microbiology

Field: Immunology and Microbiology

Domain: Life Sciences

SDG: Good health and well-being

Open Access status: green

Funders: National Institutes of Health, Pfizer Pharmaceuticals, National Institute of Child Health and Human Development