Ninety-seven (42%) Escherichia coli strains isolated in Senegal from fecal samples produced beta-lactamases. Among them, 29 (30%) isolates produced SHV-1 beta-lactamase that was plasmid mediated. The plasmids belonged to four incompatibility groups. Various degrees of TEM-1 expression in the presence of SHV-1 were observed.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC284217 | PMC |
| http://dx.doi.org/10.1128/AAC.31.6.943 | DOI Listing |
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