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TRIMETHOPRIM-RESISTANT DIHYDROFOLATE REDUCTASE DFRA14 | DFRB1 | DFRB5 | DFRG

These dfr genes encode modified dihydrofolate reductase enzymes that resist trimethoprim. This panel complements other dfrA-focused testing to detect additional resistance variants, providing more complete characterization of trimethoprim resistance in clinical isolates.

Detection of these genes guides antibiotic selection and supports infection control. Sample type is typically a culture isolate or direct clinical specimen.

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