Inclusion Criteria:  • Recovered COVID-19 patients  Definition of recovered COVID-19 patient:  COVID-19 diagnosis = established by a positive reverse transcription polymerase chain reaction (RT-PCR) for severe acute respiratory syndrome coronavirus-2 [SARS-CoV2] and recovered from COVID-19.  Recovery = based on two criteria: (1) two negative nasopharyngeal swab RT-PCR results >24 hours apart and (2) absence of fever and improvement in respiratory symptoms.  Recovered non-COVID-19 patients with viral respiratory infections confirmed with viral polymerase chain reaction testing AND with a confirmed negative COVID-19 RT-PCR test. Age and gender matched controls with no cardiac risk factors, not on cardiac medications, no history of myocardial infarction, heart failure or myocarditis, negative COVID-19 RT-PCR test and negative COVID-19 antibodies test.  Exclusion Criteria:  Previous myocardial infarction or myocarditis unrelated to COVID-19 infection History of heart failure unrelated to COVID-19 infection Presence of pacemakers or implantable cardiac defibrillators Any contraindication for CMR testing Renal impairment with eGFR <45ml/min/1.73m2 Limited life expectancy <1 year, for example due to pulmonary disease, cancer or significant hepatic failure Refusal or inability to sign an informed consent. Potential for non-compliance towards the requirements in the trial protocol (especially the medical treatment) or follow-up visits