FIGURE 1.

Cohort selection flow diagram. (A) Cohort selection diagram for the COVID‐19 cohort. (B) Cohort selection diagram for the ORVI cohort. Respiratory viral panel includes influenza A, influenza B, parainfluenza 1–4, respiratory syncytial virus A/B, adenovirus, human metapneumovirus, coronavirus (non–SARS‐COV‐2), rhinovirus/enterovirus, Chlamydia pneumonia, Mycoplasma pneumonia. Abbreviations: COVID‐19, coronavirus disease 2019; ICU, intensive care unit; ORVI, other respiratory virus infection; PCR, polymerase chain reaction; SARS‐COV‐2, severe acute respiratory syndrome coronavirus 2