Figure 1. Mean symptom scores and observed cough counts over
time (N=84 experimental and N=146 natural observations). Bars represent
standard error around the mean.
Figure 2. Aerosol shedding over time. Includes all observations
(N=84 experimental and N=146 natural). Detectable aerosol shedding in
log10 aerosol copies, with boxes showing the
interquartile range (IQR) with a band to indicate the median, and
whiskers extending to the highest and lowest data points within 1.5 IQR.
Figure 3. Comparison of self-reported symptoms and
observed coughs from maximum fine aerosol shedding days (N=11
experimental (blue), N=71 natural (red) observations). Cough counts with
boxes showing the inner-quartile range (IQR) with a band to indicate the
median, and whiskers extending to the highest and lowest data points
within 1.5 IQR.
Figure 4. Balance diagnostics for propensity score adjustment
by average treatment effect, where the naturally infected cases are
“treatment.” (A ) Absolute standardized differences between
experimental and naturally infected case covariates plotted for each
covariate, the propensity score (PS) and the linear PS. The dotted line
represents 10%, which balanced groups do not generally exceed.
(B ) Variance ratios. Dotted lines represent 0.5 and 2, the
range for which balanced populations generally do not exceed.