CCR7 and congenital rubella syndrome: Among pretreatment factors, multivariate analysis showed association of total number of infused CCR7+ T cells (naive and central memory T cell phenotype) with severity of grade ≥ 3 NE and CRS, while the percentage of effector and effector memory T cell phenotypes (CCR7–) exhibited a negative association with grade ≥ 3 CRS (h 8A and Supplemental Figure 12B).