Comparison of Xpert Flu rapid nucleic acid testing with rapid antigen testing for the diagnosis of influenza A and B

► Rapid detection of influenza is important for prompt initiation of antiviral therapy and appropriate patient triage. ► The Cepheid Xpert Flu assay combines the sensitivity and specificity of real-time, reverse transcriptase PCR with the rapidity and simplicity of the rapid antigen test. ► The Xpert Flu assay is appropriate for use in settings requiring the timely and accurate diagnosis of influenza.