Scatter plot of oropharyngeal (OP) and cloacal (CL) virus shedding. A Broiler breeders inoculated with H7N9 LPAI virus. B SPF White Leghorn chickens inoculated with H7N9 LPAI virus. C SPF White Leghorn chickens inoculated with H7N9 HPAI virus. Virus detection by qRRT-PCR. Shedding titers are expressed as log10 with error bars. For statistical purposes, negative samples were given the value of 0.1 log10 below the qRRT-PCR test limit of detection (0.8 log10 EID50/mL for H7N9 LPAI virus and 1.4 log10 EID50/mL for H7N9 HPAI virus).