AFP and viral encephalitis: The diagnoses of patients with AFP were diverse, including meningoencephalitis reported in 189 cases (29.7%), followed by Guillain-Barré syndrome (GBS) in 144 cases (22.6%), transverse myelitis in 58 cases (9.1%), acute disseminated encephalomyelitis (ADEM) in 44 cases (6.9%), encephalitis in 26 cases (4.1%), hand-foot-mouth diseases (HFMD) in 11 cases (1.7%), meningitis in 8 cases (1.3%), poliomyelitis in 6 cases (0.9%), and other clinical syndromes, including myositis, hypokalemic paralysis, infection, and undefined paralysis in 151 cases (23.7%) (Figure 2).