CD69 and infection: Treatment also increases CD69+ and - IFNγ+ and - NK cell populations during infection, however, there are greater increases in CD69- and IFNγ- populations, as differences in CD69+IFNγ+, total CD69+ (IFNγ+ or -) and total IFNγ+ (CD69+ or -) populations do not quite reach statistical significance (p > 0.074; Figs. 6B–F and EV4F,G).