Novel generations of functional assays such as gamma interferon (IFN-γ) ELISpot, which detect cytokine production at the single cell level and provide both quantitative and qualitative characterization of T cell responses can be used to assess cell-mediated immune responses directed against varicella zoster virus (VZV).
Salem Fourati, I., Grenier, A., Jolette, É., Merindol, N., Ovetchkine, P., Soudeyns, H. Development of an IFN-γ ELISpot Assay to Assess Varicella-Zoster Virus-specific Cell-mediated Immunity Following Umbilical Cord Blood Transplantation. J. Vis. Exp. (89), e51643, doi:10.3791/51643 (2014).