LGI1 and viral encephalitis: Among the various AE, anti-NMDAR encephalitis is the most prevalent (approximately 54%–80% of AE cases) (Ren et al., 2021), followed by anti-leucine-rich glioma inactivated protein 1 (LGI1) encephalitis and anti-gamma-aminobutyric acid type B receptor (GABABR) encephalitis (Davies et al., 2010; Guan et al., 2016; Suh-Lailam et al., 2013).