CD8A and infection: However, following infection with PyV, mCMV, and HV68, there was a significant increase in CD127+CXCR3+ CD8 T cells at the peak (p = 0.0025, Figure 4B) and memory (p = 0.0146, Figure 4C) time points compared with mice that received mock infections, indicating infection with PyV, mCMV, and HV68 results in the emergence of a long-lived, quality memory cell population.