part of part of has part has part characteristic of towards has modifier T cell CD4-positive, alpha-beta memory T cell Abnormal CD4+ T cell subset proportion Abnormal memory T cell proportion Abnormal CD4+ memory T cell proportion Unlike in CD8+ T cells, in CD4+ T cells the populations of central memory, effector memory and TEMRA cells are not easily measurable and or are of limited clinical utility. Therefore, generally, only the distinction between naive and memory CD4 T cells is made. abnormal ratio blood