Fig. 1

The dynamics of CD4+ T cell subsets during follow-up between DG and non-DG. The CD4+ T cell percentage decreased gradually in the DG(a). The CD4+ T cell count dropped significantly in the DG while it maintained the similar level with that at enrolment in the non-DG(b). The naïve CD4+ T cell percentage experienced a down trend(c) while memory CD4+ T cell percentage was comparable to that at enrolment (e). The naïve CD4+ T cell counts decreased significantly(d) while memory CD4+ T cell counts decayed slightly(f) in the DG