Fig. 2From: Performance of BioFire array or QuickVue influenza A + B test versus a validation qPCR assay for detection of influenza A during a volunteer A/California/2009/H1N1 challenge studyVenn diagram of rapid test performance versus qPCR. Number of samples positive by qPCR (blue), positive by rapid test (green), or positive by both qPCR and rapid test (yellow). Samples negative for both qPCR and rapid test (grey). Size of circles is proportional to nBack to article page