Yes... Wife and oldest son caught it. Wife has recovered and can go back to work tomorrow. I can get tested tomorrow and return Wednesday with a negative test. Our son is out of quarantine after today per the health department, but can't return to school until after break due to school policy... they have to stay out 10 days after a positive test, not onset of symptoms which is what the health department uses.
Basically, if there is a caution in the last few laps of the race, they will have up to 3 attempts to finish under green. They'll count caution laps up to the advertised distance then just ride around on laps that basically don't count (or red flag if there's a big clean up) and then reset and go green with 2 to go. If there's a caution before the leader takes the white flag, they reset and try again. Once the leader crosses the line for a white flag, the next flag ends the race whether it is caution or checkers.
It was kind of a weird rule for a while and they've made tweaks to it over the years, but it does work kind of nice in that it gives structure to those odd end of race situations and still provides an opportunity for the fans to get an exciting finish. It's better than having the sanctioning body arbitrarily deciding to maybe throw a red flag to get a few more laps run vs keeping them out under yellow.