Comparative in vitro activity of cefodizime, ceftazidime, aztreonam, and other selected antimicrobial agents against Neisseria gonorrhoeae

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Abstract
The in vitro activities of three new beta-lactam antimicrobial agents, cefodizime, ceftazidime, and aztreonam (formerly azthreonam), were compared with those of cefotaxime, cefuroxime, cefoxitin, and penicillin against 100 beta-lactamase-negative and 42 beta-lactamase-positive Neisseria gonorrhoeae strains. The three new antimicrobial agents showed excellent activity against N. gonorrhoeae regardless of beta-lactamase production. Cefodizime was as active as cefotaxime and more active than the other test antimicrobial agents. It inhibited all isolates at a concentration of less than or equal to 0.016 micrograms/ml.

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