Inclusion Criteria for all participants:  18 years of age or older Being able to participate in 3 evaluation sessions within 6 months  Specific inclusion criteria for the COVID Groups:  having received a diagnosis of COVID-19 from a government designated testing clinic or hospital at least 12 weeks prior to inclusion.  Specific inclusion criteria for the Long COVID Group:  presenting at least one physical or cognitive long COVID-19 symptom for more than 12 weeks following the initial diagnosis such as fatigue, shortness of breath, muscle weakness, joint pain, headache, cognitive dysfunction, or sleep-related difficulties  Specific inclusion criteria for the Acute COVID Group:  not have experienced any persistent symptom for more than 4 weeks after having contracted COVID- 19  Specific inclusion criteria for the Control Group:  not have received a diagnosis of COVID-19 and not have experienced COVID-19 symptoms since February 2020 such as fever, sudden loss of smell, headache, dyspnea, great fatigue, muscle or body aches, shortness of breath or sore throat