Appendix 1—figure 2. Frequencies of the five most common symptoms during the period before (blue bars) and after (red bars) Omicron variant frequency reached 10% and 90%, respectively.

95% confidence intervals are also shown. In (A), data from individuals aged between 18 and 60 years are shown; and (B) shows the same information for individuals older than 60 years. Data from children are not presented.