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. Author manuscript; available in PMC: 2011 Jul 14.
Published in final edited form as: J Infect Dis. 2010 Apr 1;201(7):1024–1030. doi: 10.1086/651199

Figure 3.

Figure 3

Comparison of varicella-zoster virus (VZV) responder cell frequency (RCF) as a function of age in human immunodeficiency virus (HIV)–infected children after chickenpox with the reference curve. The data derived from 88 HIV-infected children aged 1–23 years (open circles) with an antibody-confirmed history of varicella are superimposed on the data from the reference group (closed circles) for the same age interval. The dotted line depicts the VZV RCF as a function of age in HIV-infected children, and the continuous line depicts that in the reference group. At the bottom of the graph, we show VZV RCF differences between groups and corresponding P values calculated at 4-year intervals from 8 to 20 years of age.