Autoantibodies associated with central nervous system demyelination [aquaporin-4 (AQP4), myelin oligodendrocyte glycoprotein (MOG), myelin basic protein (MBP)], encephalomyelitis/encephalitis (IgLON5, DPPX, DRD2, mGluR5, mGluR1, neurexin-3α, NMDA, AMPA1, AMPA2, LGI1, GABAb, CASPR2), and gangliosides (GM1, GM2, GM3, GM4, GD1a, GD1b, GD2, GD3, GQ1b, GT1a, GT1b, sulfatide) were not detected in either serum or CSF. This evidence concerns the gene MBP and viral encephalitis.