Performance of six influenza rapid tests in detecting human influenza in clinical specimens
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TL;DR
A head-to-head comparison for the detection of seasonal influenza types A and B, compared to laboratory-based tests found sensitivity was considerably lower than that seen for influenza A, although the number of specimens containing influenza B viruses was low.
Abstract
Compared with cell culture, five of the rapid tests (Binax Now Influenza A&B, Directigen EZ Flu A+B, Denka Seiken Quick Ex-Flu, Fujirebio Espline Influenza A&B-N, and Quidel QuickVue Influenza A+B Test) demonstrated a similar influenza A sensitivity of between 67-71% and a specificity of 99-100%, however one rapid test (Rockeby Influenza A Antigen Test) had a significantly lower influenza A sensitivity of only 10% (specificity was 100%). For the five kits that detected influenza B antigen, sensitivity was considerably lower than that seen for influenza A (sensitivity for all the kits was 30%), although the number of specimens containing influenza B viruses was low.
