Figure 1From: Detection of a novel avian influenza A (H7N9) virus in humans by multiplex one-step real-time RT-PCR assay Surveillance of novel H7N9 viruses from the patients by multiplex real-time RT-PCR. The average number of days that patients tested positive for H7N9 viruses in sputum or tracheal aspirates specimens (mean value =6.14 days) were significantly greater than that for patients’ throat swabs samples (mean value =2.42 days).Back to article page