Meningoencephalitis was the most common clinical manifestation (n = 79; 41.6%) followed by brainstem encephalitis (n = 58; 30.5%), encephalitis (n = 26; 13.7%), AFP/myelitis (n = 17; 8.9%) and other motor disorders (n = 10; 5.3%). This evidence concerns the gene AFP and myelitis.