CD79A and influenza: IgA: with a factor of 3.5 (P < 0.0001) for RSV, 2.0 (P < 0.05) for Influenza, 3.2 (P < 0.001) for HCoV-OC43, 3.2 (P < 0.001) for HCoV-HKU1 and 2.2 (P < 0.01) for HCoV-229E).