Next, NAA60-depleted and control A549 cells or HBECs were infected with influenza virus A/Puerto Rico/8/1934/(H1N1) (hereafter referred to as PR8) or influenza virus A/California/07/2009/(H1N1) (hereafter referred to as CA09) strains at a multiplicity of infection (MOI) of 1.0. The gene discussed is NAA60; the disease is infection.