Contribution of beta-lactamase and PBP amino acid substitutions to amoxicillin/clavulanate resistance in beta-lactamase-positive, amoxicillin/clavulanate-resistant Haemophilus influenzae.

Abstract excerpt

The roles of beta-lactamase and alterations in penicillin-binding protein in the development of amoxicillin and amoxicillin/clavulanate resistance in two beta-lactamase-positive, amoxicillin/clavulanate-resistant (BLPACR) strains of Haemophilus influenzae were investigated. Seven beta-lactamase-negative, ampicillin-resistant (BLNAR) strains were also studied for comparison of their resistance mechanisms. All...

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