Georgia Tech researchers have created a COVID-19 Event Risk Assessment Planning Tool. Plug in your state and an event size, and it will give you the current odds (based on estimated number of circulating COVID-19 cases in your state) that at least one person with COVID-19 would be in attendance at said event.
For example, here’s a plot of the odds of at least one COVID-19 positive individual being present at an event in Michigan with 250 people.
There are no differences between the May 19, 2020 @ 22:46:34 revision and the current revision. (Maybe only post meta information was changed.)