I believe they said this was the longest and large
Post# of 1418
Most COVID-19 ‘Long Haulers’ Continue to Experience Symptoms 15 Months After Initial Infection - MAY 24, 2022
https://news.feinberg.northwestern.edu/2022/0...infection/
Here's the study...
Evolution of neurologic symptoms in non-hospitalized COVID-19 “long haulers” - First published: 24 May 2022
https://onlinelibrary.wiley.com/doi/10.1002/acn3.51570