Abstract
A strain of Salmonella mbandaka isolated from the feces of an Algerian infant showed a reduced susceptibility to cefotaxime (MIC, 8 mg/liter). This strain produced two transferable beta-lactamases of pIs 5.3 and 5.6. The novel beta-lactamase with a pI of 5.3 inhibited by clavulanic acid showed cefotaxime hydrolysis and was therefore designated CTX-2.
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