The graph above is a snapshot from this site depicting the reproduction rate of SARS-CoV-2 by state as of today, frequently expressed as R(t). I cannot confirm its veracity but it’s interesting. You can click on the image for a larger version.
When the initial reproduction rate (R(0)) is 1 or above, that means the virus is spreading at an exponential rate; when below 1, the spread is decaying, declining. No one really knows what the R(0) for SARS-CoV-2 was. It may be anything from 2.2 to 6.5.
Here’s my question. Assuming the veracity of the information expressed here and the historic information presented, how to you explain Illinois’s policy? I don’t think you can.
BTW I’ve just received an email from my employer saying that someone with COVID-19 had been in the building yesterday on the floor above us and the building’s lobby, the 3rd floor (entrance from the building’s garage, and the floor in question had been disinfected).