To assess whether CK2β is activated by influenza virus, we incubated A549 cells with medium containing the human A/Puerto Rico/8/34 influenza virus (multiplicity of infection [MOI] = 5) for 1 h at 37°C and then analyzed CK2β activation at different time points by using an antibody that detects serine phosphorylation at position 209 of CK2β. The gene discussed is CSNK2B; the disease is infection.