To evaluate whether infection of LMECs induced an antiviral immune response, we inoculated LMECs with pH1N1, H1N1, or H3N2 virus and measured RNA expression of IFN-β, IFN-λ and interferon-stimulated gene (ISG) IFIT1 24 hpi (Fig S1). The gene discussed is IFIT1; the disease is infection.