After infection with a poxvirus (vaccinia virus Western Reserve), a β-herpesvirus (murine cytomegalovirus, MCMV) and a murine γ-herpesvirus (murine gammaherpesvirus 68, MHV-68) TER119+CD11a+ cells became readily detectable in the spleen (Figures 4A,B). This evidence concerns the gene ITGAL and infection.