Here's an interview with Dr Ron Tompkins (who has sadly just died), regarding Long Covid. Some more information about Dr Tompkins, who has done a lot of research on injury and ME/CFS
RONALD G. TOMPKINS - Obituary - Boston, MA - Casper Funeral Services | CurrentObituary.com
RONALD G. TOMPKINS - Obituary - Boston, MA - Casper Funeral Services | CurrentObituary.com