After my son got sick, I dived into the data, and it turns out vaccinated people can and do spread COVID

“But had I known then what I know now, I would not have let my guard down around vaccinated people. Parents of unvaccinated children and those who live with others vulnerable to COVID should consider doing the same.”

https://www.scientificamerican.com/article/the-risk-of-vaccinated-covid-transmission-is-not-low/