CD8A and infection: With regard to CD8 T cell responses against NP, NA, HA, and M1, the La Gruta group has characterized the magnitude of the CD8 T cell response on day 10 post H1N1 A/Puerto Rico/8/34 infection against NP366-374, NP36-43, NP55-63, NA181-190, HA402-409, HA389-399, HA41-49, HA308-316, M1181-190, and M1128-135.