Figure S5.
Neonatal MRV infection results in transiently decreased CD4+ T cells in the periphery. (A and B) BALB/c mice were mock or MRV infected on D0 and harvested at various time points for flow cytometry of the spleen, shown as absolute number (#) of cells per spleen (A), or percentage Foxp3+ cells per total CD4+ cells (B). n = 3–6 for each time point from two independent infections. Statistical significance was evaluated used multiple comparison Student’s t test for flow cytometry. (C–E) D0 mock- or MRV-infected thymus from mice 3, 5, or 7 dpi were evaluated by flow cytometry. CD19−NKp46−TCRγδ−CD25− (Lin−) cells were gated on CD5, and TCRβ surface expression and absolute number (#) were evaluated for CD5hiTCRβhi or CD5loTCRβlo (C) and CD4 SP (CD4+), DP (CD4+CD8+), or CD4+Foxp3+ (D). Splenocytes were evaluated at the designated time points and evaluated for absolute number (#) of total CD4+ cells or CD4+Foxp3+ Tregs (E). n = 6 for all except mock 3 dpi (n = 4), each from two to three separate infections. Statistical significance was calculated using multiple comparison Student’s t test. **, P < 0.01; ***, P < 0.001.