All participants in the non-recent COVID-19 group tested positive BEFORE they were vaccinated (since the vaccination was not available at the time of infection)

All participants in the non-recent COVID-19 group tested positive BEFORE they were vaccinated (since the vaccination was not available at the time of infection) and vaccination recommendations at the time prioritised non-infected individuals over previously infected individuals. TableBaseline characteristics. Control group | Asymptomatic infection group | Non-recent COVID-19 group | Recent COVID-19 group. (n=251)-------------------(n=46)------------------------(n=177)-------------------(n=19). Vaccinated† 191 (76%)----------------30 (65%)-----------------------118 (67%-----------------10 (53%). I am assuming? that the majority were vaccinated before the study. How did they differentiate Sequelae covid infection and Sequelae vaccination