A, The number of PFU per lung 7 d after WT γHV68 challenge of mock-vaccinated mice, mice vaccinated 30 d prior with AC-RTA, or AC-RTA-vaccinated mice treated with anti-CD4, anti-CD8, or anti-Thy1.2 mAb prior to challenge. ***P≤0.001, one way ANOVA. B, The number of PFU per lung 7 d after WT γHV68 challenge of mock-vaccinated mice, mice vaccinated 4 or 8 m prior with AC-RTA, or AC-RTA-vaccinated mice treated anti-Thy1.2 mAb prior to challenge. **P≤0.01, ***P≤0.001, one way ANOVA.