CNTNAP2 and viral encephalitis: However, the high anti-VGKCC Ab titers with an average of 828 pmol/l are comparable with the concentrations usually observed in anti-LGI1 encephalitis case series (van Sonderen et al., 2016c) and higher than in patients with anti-VGKCC Abs without LGI1 or CASPR2 abs (van Sonderen et al., 2016b).