Several previous posts presented a new contact hour metric for measuring compliance with staff child ratios and for monitoring potential COVID19 infection rates. However, a conversion table had only been proposed for the staff child ratios but not for the potential COVID19 infection rates. This post provides that conversion table. It will still require additional data to confirm its efficacy but at least it provides some guidance in looking at the relationship between the number of individuals present and the exposure time.
Here is the Technical Research Note and the original paper it is an addition to: