3D Plots with the effect of cloud coverage on COVID-19 along the lag period and overall effect plots of cloud coverage on COVID-19 infections.

The surface of the 3D plots illustrates the relative risk of COVID-19 infection (y-axis) for different levels of cloud coverage (x-axis, range from 0–1) across different lag times (z-axis, days). The overall effect plots provide an estimate of the combined relative risk of COVID-19 across the 14 day lag period with cloud coverage represented on the x-axis and the relative risk on the y-axis.