Immunofluorescence staining of VZV glycoprotein H in VZV-infected MRC-5 cells by using anti-VZV gH antibody (clone OAKK39). MRC-5 was infected with VZV pOka strain, vaccine strai vOka or mock-infected. Anti-VZV gH antibody was used at about 1/1,000 dilution. As second antibody, Alexa Fluor 488 donkey anti-mouse IgG [H+L] was used at 1/200 dilution. Nuclei were stained with Hoechst 33342.