While all other tested antibodies related to encephalitis and paraneoplastic syndrome, including those against N-methyl-D-aspartic acid receptor (NMDAR), α-amino-3-hydroxy-5-methyl-4-isoxazole-propionic acid receptor (AMPAR), and Leucine-rich glioma inactivated 1 (LGI1) were all negative (for the complete list, see Supplementary Table S1). This evidence concerns the gene LGI1 and viral encephalitis.