Figure.

Copies of avian influenza virus RNA (A) and infectious viral loads (B) detected from chicken carcasses sold at live poultry markets or supplied through slaughtering industries, Guangzhou, Guangdong, China, June–December 2016. The median value with interquartile range is shown for each dataset. Dotted lines represent the limit of linear range of quantification for viral RNA (2.903 log₁₀ matrix gene copies/mL) (A) or the detection limit by TCID₅₀ assay (1.789 log₁₀ TCID₅₀/mL) in MDCK cells (B). p values from Kruskal-Wallis test followed by Dunn’s multiple comparison test are shown. AIV, avian influenza virus; TCID₅₀, 50% tissue culture infectious dose.