Inclusion Criteria:  Age ≥ 18 years old Male or Female Previous diagnosis of COVID-19, but recovered >3 months (Arm 1) Never infected or diagnosed with COVID-19 (Arm 2) Fluent in English Able to operate simple computerized device Willing to sign a written informed consent and ability to comply with study requirements Ability to provide demographic and medical history information  Exclusion Criteria:  Individuals under 18 years old Currently under COVID-19 treatment or quarantine Previously known diagnosis of dementia and Alzheimer's Inability to provide written informed consent for self or complete cognitive testing (either using Cognivue Clarity or paper/pencil testing) Known severe terminal illness