Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The proportion of CD4+ (A, C, and D) or CD8+ (B, E, and F) T cells with activated (HLA-DR+ CD38+) (A and B) or cycling (Ki67+) (C to F) phenotype was quantified by flow cytometry. Activation phenotype was determined only for PBMC. Mann-Whitney tests were used for between-group comparisons.
