Subjects meeting the following criteria may be eligible for participation in the study:

1. ≥ 18 years old or older

2. The first vital sign (any one of: blood pressure, temperature, pulse or respiratory rate) has been recorded in the medical record

3. A complete blood count has been ordered for which a blood sample has been collected within 4.5 hours since the first vital sign was recorded

4. Signs or suspicion of a respiratory infection, defined as:

1. Subject designated for evaluation in the ED respiratory or pulmonary pod or similar location. OR

2. An order placed for a respiratory viral panel. OR

3. An order placed for a SARS-CoV-2 test. OR

4. A subject self-reported as having tested positive for the SARS-CoV-2 test within the previous 7 days and returning with a related complaint.

SQuISH-COVID: A Pilot Study