Earlier quoted context omitted.
Seems like the CDC reducing the suggested isolation time from 10 days to 5 was a mistake.
My family (2 adults, 2 kids) was all vaccinated and the adults boosted when we got Covid for the first time. We all tested positive for 7+ days, and the baby was positive on Day 10 via a PCR test. Just one data point but 5 days has never seemed like long enough to me.
https://www.health.com/condition/infectious-diseases/coronav...
"You may test positive for as long as three months after having COVID-19"
That said, yes 10 days seems much safer as a rule!