INCLUSION CRITERIA:  Eligible subjects must meet the following inclusion criteria:  Age >=18 years. Must have a standard of care molecular testing positive for COVID19 to be enrolled in cohort 1 or a standard of care molecular testing negative for COVID19 to be enrolled in cohort 2 done within 7 days Ability of subject or Legally Authorized Representative (LAR) or Durable Power of Attorney (DPA) to understand and the willingness to sign a written informed consent document  EXCLUSION CRITERIA:  Subjects with the following characteristics will be excluded from the study:  -Participants started on treatment with remdesivir and/or dexamethasone for the treatment of COVID19