That doesn’t mean the seatbelt provides no protection.
The same basic principle applies here, although vaccines and seatbelts obviously work in very different ways.
A vaccine does not promise that nobody will ever become infected.
Instead, vaccination changes the probability of different outcomes.
And those probabilities can change depending on age, underlying health conditions, previous infection, circulating variants, time since vaccination and other factors.
Why Can Vaccinated People Still Get COVID?
There isn’t one single explanation.
Several factors can contribute.
- Immunity changes over time
Protection is not necessarily permanent.
The
