inclusion criteria: * age ≥ 18 years old * presentation to the ed with respiratory symptoms likely caused by covid-19 * patient displays at least one of the following 1. respiratory rate ≥ 24 2. new cough 3. new atypical chest pain 4. new dyspnea 5. oxygen saturation \< 97% at rest 6. chest x-ray with new changes consistent with covid-related airspace disease * cleared for discharge home by attending physician * obtained covid testing (results not required at time of enrollment) * onset of symptoms ≤12 days prior to ed visit

inclusion criteria: * age ≥ 18 years old * presentation to the ed with respiratory symptoms likely caused by covid-19 * patient displays at least one of the following 1. respiratory rate ≥ 24 2. new cough 3. new atypical chest pain 4. new dyspnea 5. oxygen saturation \< 97% at rest 6. chest x-ray with new changes consistent with covid-related airspace disease * cleared for discharge home by attending physician * obtained covid testing (results not required at time of enrollment) * onset of symptoms ≤12 days prior to ed visit

inclusion criteria: age ≥ 18 years old presentation to the ed with respiratory symptoms likely caused by covid-19 patient displays at least one of the following respiratory rate ≥ 24 new cough new atypical chest pain new dyspnea oxygen saturation < 97% at rest chest x-ray with new changes consistent with covid-related airspace disease cleared for discharge home by attending physician obtained covid testing (results not required at time of enrollment) onset of symptoms ≤12 days prior to ed visit

inclusion criteria: age ≥ 18 years old presentation to the ed with respiratory symptoms likely caused by covid-19 patient displays at least one of the following respiratory rate ≥ 24 new cough new atypical chest pain new dyspnea oxygen saturation < 97% at rest chest x-ray with new changes consistent with covid-related airspace disease cleared for discharge home by attending physician obtained covid testing (results not required at time of enrollment) onset of symptoms ≤12 days prior to ed visit

inclusion criteria: - age ≥ 18 years old - presentation to the ed with respiratory symptoms likely caused by covid-19 - patient displays at least one of the following 1. respiratory rate ≥ 24 2. new cough 3. new atypical chest pain 4. new dyspnea 5. oxygen saturation < 97% at rest 6. chest x-ray with new changes consistent with covid-related airspace disease - cleared for discharge home by attending physician - obtained covid testing (results not required at time of enrollment) - onset of symptoms ≤12 days prior to ed visit

inclusion criteria: - age ≥ 18 years old - presentation to the ed with respiratory symptoms likely caused by covid-19 - patient displays at least one of the following 1. respiratory rate ≥ 24 2. new cough 3. new atypical chest pain 4. new dyspnea 5. oxygen saturation < 97% at rest 6. chest x-ray with new changes consistent with covid-related airspace disease - cleared for discharge home by attending physician - obtained covid testing (results not required at time of enrollment) - onset of symptoms ≤12 days prior to ed visit