During the acute stage of the infection, patients demonstrated decreased blood counts of both TEMRA subsets (TEMRA T helpers—CD3+CD4+CD45RO−CD62L−; TEMRA cytotoxic T cells—CD3+CD8+CD45RO−CD62L−), i.e., the cells with the highest functional activity, which can be due to the migration of cells into the tissue to implement their function. This evidence concerns the gene CD4 and infection.