MOG and infection: The following inclusion criteria were applied: (1) infection with SARS-CoV-2 virus prior to neurological symptoms, (2) presence of anti-MOG antibodies in serum and/or in the CSF, (3) presence of encephalopathy/encephalitis, with particular emphasis on changes in MRI, without inflammatory changes in other CNS structures (e.g., myelitis, ON, and ADEM), and (4) no other plausible explanation for the above.