With the treatment of UTI, CD4+T cells raised 5.13%, mean = 5.13, 95% CI [2.75, 7.50] (p < 0.0001); there was no significant change in CD8+T cells, mean = −0.74 [−2.93, 1.45] (p = 0.51). Conclusion. Here, CD8A is linked to bacterial urinary tract infection.