Figure 1. Study flow diagram.
Out of the initial cohort of 703 participants, 669 ambulatory patients were ultimately included, excluding those who declined to participate (n = 31) or who lived outside the Geneva canton (n = 3). Reasons to suspend follow-up during the first 10 d were clinical recovery (≥10 d from symptom onset and 48 h without symptoms), patient wish, or hospitalization during follow-up. Attempts were made to assess all 669 participants at day 30–45 from diagnosis.