CD79A and infection: Another study showed that BALB/c mice intranasally vaccinated with α-GalCer in combination with HA antigen derived either from A/PR8 (H1N1) or A/Yamagata (H1N1) were protected from subsequent infection with A/PR8 (H1N1) live virus and that the A/Yamagata HA antigen vaccine induced anti-PR8 HA IgA and IgG antibodies.