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Susceptibility of Haemophilus Influenza to Ampicillin As Determined by Use of a Modified, One-minute Beta-lactamase Test

Overview
Journal Antimicrob Agents Chemother
Publisher American Society for Microbiology
Specialty Pharmacology
Date 1976 Jan 1
PMID 1083200
Citations 40
Authors
J Escamilla
Affiliations
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Abstract

Fifty-seven cultures of Haemophilus influenzae were tested for production of beta-lactamase by use of a modified, 1-min test. Only the 24 cultures that were ampicillin resistant, whether type b or not, yielded positive results for the enzyme; all ampicillin-susceptible isolates were uniformly negative. The beta-lactamase procedure is simple to perform and requires only commonly available reagents.

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References
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