GAD2 and viral encephalitis: In contrast, additional etiologies in the immunocompetent group included anti-NMDAR encephalitis (n = 53), WNV (n = 28), VZV (n = 25), Hashimoto's encephalopathy (n = 19), anti-leucine-rich glioma-inactivated 1 (LGI1) encephalitis (n = 13), and antiglutamic acid decarboxylase 65 (GAD65) encephalitis (n = 12) (Table 2).