Inclusion Criteria-COVID-19 group:  Men and women age 18-89. Past diagnosis of COVID-19 with confirmed positive SARS-CoV-2 PCR test in electronic medical record English and/or Spanish speaking Previously hospitalized at NYP/WCM between March 1 and December 31, 2020 for a minimum of three days.  Inclusion Criteria-Comparison group:  Men and women age 18-89 English and/or Spanish speaking Previously hospitalized at NYP/WCM between March 1 and December 31, 2020 for a minimum of three days. Underwent hospitalization secondary to a medical diagnosis that was not COVID-19  Exclusion Criteria--COVID-19 group:  N/A  Exclusion Criteria--Comparison group:  Past diagnosis of COVID-19 Admitted to inpatient hospitalization due to, or past history of, a primary central nervous system relation etiology such as stroke, brain tumor, encephalitis, traumatic brain injury, multiple sclerosis, or Parkinson's disease.