Extended Data Table 2 | Age distribution of symptomatic and asymptomatic individuals at the first and second surveys
The symptomatic (Symp) category includes both symptomatic and pre-symptomatic participants. The percentages represent the proportions positive among those tested; that is, the prob-
ability of testing positive given symptomatic or asymptomatic (Asymp) infection.
^Participants not available at the second survey are reported within parentheses.