Case report and systematic review had instigated a critique that there were more cases of
post-COVID-19-vaccination NMOSD. Indeed, after the systematic review was performed in
July 2021, many reports have been published, and we have seen two new patients at our
center as well. However, Finsterer's question on the subclinical activity of NMOSD prior to
vaccination, although an interesting notion, was debatable. NMOSD is a relapsing disease …