UMMS Affiliation

Department of Clinical Microbiology

Publication Date


Document Type



Ampicillin Resistance; Anti-Bacterial Agents; Microbial Sensitivity Tests; Moraxella (Branhamella) catarrhalis; Penicillin Resistance




The in vitro activities of 39 antimicrobial agents were assessed versus 74 clinical isolates of Branhamella catarrhalis. Resistance was observed only with penicillin and ampicillin and then only with beta-lactamase-producing strains. The results of in vitro susceptibility tests with agar dilution and broth microdilution procedures were found to be comparable. The results of broth tube macrodilution tests were, in general, one twofold-concentration increment higher.

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Citation: Antimicrob Agents Chemother. 1988 Feb;32(2):259-61.

Related Resources

Link to article in PubMed

Journal/Book/Conference Title

Antimicrobial agents and chemotherapy

PubMed ID


Included in

Microbiology Commons



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