Eighteen of 25 isolates of Salmonella enterica serovar Typhi were multidrug resistant and contained class 1 integrons with a single cassette, dfrVII or aadA1. The dfrVII-containing integron was likely borne on an IncHI1 plasmid. Salmonella serovar Typhi could become resistant to broad-spectrum cephalosporins by integrating cassettes, such as veb-1, a common cassette in Asia.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC152528 | PMC |
| http://dx.doi.org/10.1128/AAC.47.4.1427-1429.2003 | DOI Listing |
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