My grandson, age 10, had Covid in December. In February he was sent home to quarantine for a week after a classmate who sat next to him was diagnosed with Covid. They knew he already had it so he was obviously immune, but they still did it. This was at a charter school that’s known for being conservative/traditional.
Wife and I had to quarantine (house arrest) for 14 days after playing cards for several hours with a person diagnosed, tested positive, and treated for COVID-!9.
NO ONE ELSE from our quarantine group got COVID.
The infected person was in his late teens and Obese. The rest of the card players were/are elderly. (70 plus) He was the nephew of one of the regular players.