The vaccine is simultaneously like a great seat belt and a choice to drive sober. The seat belt reduces your chance of severe injury in an accident. Driving sober reduces the risk of the accident in the first place. The vaccine does both, but it still matters if you’re surrounded by reckless drivers. No vaccine is 100 percent effective, and the more virus is around us — in this case, carried by the unvaccinated, who are five times more likely to be infected and thus to spread coronavirus — the more likely the vaccinated are to become infected.

Source: Washington Post September 15, 2021 14:26 UTC