inclusion criteria: 1. adult male and female healthcare workers ≥ 18 to ≤ 75 years of age upon study consent 2. healthcare workers with • one day or more of exposure to suspect and/or positive covid-19 patients, including but not limited to those working in the emergency department or intensive care unit. or • unprotected exposure to a known positive covid-19 patient within 72 hours of screening. 3. afebrile with no constitutional symptoms 4. willing and able to comply with scheduled visits, treatment plan, and other study procedures 5. evidence of a personally signed and dated informed consent document indicating that the subject (or a legally acceptable representative) has been informed of all pertinent aspects of the study prior to initiation of any subject-mandated procedures

inclusion criteria: 1. adult male and female healthcare workers ≥ 18 to ≤ 75 years of age upon study consent 2. healthcare workers with • one day or more of exposure to suspect and/or positive covid-19 patients, including but not limited to those working in the emergency department or intensive care unit. or • unprotected exposure to a known positive covid-19 patient within 72 hours of screening. 3. afebrile with no constitutional symptoms 4. willing and able to comply with scheduled visits, treatment plan, and other study procedures 5. evidence of a personally signed and dated informed consent document indicating that the subject (or a legally acceptable representative) has been informed of all pertinent aspects of the study prior to initiation of any subject-mandated procedures

inclusion criteria: adult male and female healthcare workers ≥ 18 to ≤ 75 years of age upon study consent healthcare workers with • one day or more of exposure to suspect and/or positive covid-19 patients, including but not limited to those working in the emergency department or intensive care unit. or • unprotected exposure to a known positive covid-19 patient within 72 hours of screening. afebrile with no constitutional symptoms willing and able to comply with scheduled visits, treatment plan, and other study procedures evidence of a personally signed and dated informed consent document indicating that the subject (or a legally acceptable representative) has been informed of all pertinent aspects of the study prior to initiation of any subject-mandated procedures

inclusion criteria: adult male and female healthcare workers ≥ 18 to ≤ 75 years of age upon study consent healthcare workers with • one day or more of exposure to suspect and/or positive covid-19 patients, including but not limited to those working in the emergency department or intensive care unit. or • unprotected exposure to a known positive covid-19 patient within 72 hours of screening. afebrile with no constitutional symptoms willing and able to comply with scheduled visits, treatment plan, and other study procedures evidence of a personally signed and dated informed consent document indicating that the subject (or a legally acceptable representative) has been informed of all pertinent aspects of the study prior to initiation of any subject-mandated procedures

inclusion criteria: 1. adult male and female healthcare workers ≥ 18 to ≤ 75 years of age upon study consent 2. healthcare workers with • one day or more of exposure to suspect and/or positive covid-19 patients, including but not limited to those working in the emergency department or intensive care unit. or • unprotected exposure to a known positive covid-19 patient within 72 hours of screening. 3. afebrile with no constitutional symptoms 4. willing and able to comply with scheduled visits, treatment plan, and other study procedures 5. evidence of a personally signed and dated informed consent document indicating that the subject (or a legally acceptable representative) has been informed of all pertinent aspects of the study prior to initiation of any subject-mandated procedures

inclusion criteria: 1. adult male and female healthcare workers ≥ 18 to ≤ 75 years of age upon study consent 2. healthcare workers with • one day or more of exposure to suspect and/or positive covid-19 patients, including but not limited to those working in the emergency department or intensive care unit. or • unprotected exposure to a known positive covid-19 patient within 72 hours of screening. 3. afebrile with no constitutional symptoms 4. willing and able to comply with scheduled visits, treatment plan, and other study procedures 5. evidence of a personally signed and dated informed consent document indicating that the subject (or a legally acceptable representative) has been informed of all pertinent aspects of the study prior to initiation of any subject-mandated procedures