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. 2021 Mar 25;91(5):347–355. doi: 10.1111/josh.13008

Table 2.

Proportion of Laboratory‐Confirmed Cases That Were Symptomatic At Time of Testing Combined Schools A and B

Total Infections Total Symptomatic Symptomatic Rate (95% Confidence Interval)
Lower school 39 1 2.6% (0.3%–11.0%)
Middle school 20 5 25% (10.2%–46.4%)
Upper school 57 5 8.8% (3.4%–18.2%)
Adults 21 10 47.6% (27.7%–68.1%)