Interesting read regarding COVID-19's affect on immune response in the brain.
https://neurosciencenews.com/covid-blood-brain-inflammation-17511/
@Wetrix While I understand your concern, I'm more concerned with preventing potential hemorrhagic stroke and other neuropathlogies that could arise (especially in asymptomatic patients) than the time spent developing the vaccine. SARS-Cov-1 was far better contained and I imagine much less red tape was cut through for that R&D.