Cleveland Clinic Journal of Medicine
https://pubmed.ncbi.nlm.nih.gov/?myncbishare=dukemlib&dr=abstract&otool=dukemlib&term=32847818
Turns out that a lot can help during acute COVID infection including encephalopathy, stroke, CNS infection, seizures, and neuromuscular disease. A number of factors such as severe disease, hypoxemia requiring intubation, hypoperfusion, and increased inflammatory response.