not necessarily to make infection mathematically impossible.
The goal is to prepare the immune system so that when it encounters the virus, it can respond more effectively.
WHO’s current guidance says vaccinated people can still become infected, but vaccination remains highly effective against serious disease and death.
And the CDC similarly reports meaningful reductions in hospitalization and critical illness following COVID-19 vaccination, although protection changes over time.
Don’t Let One Sentence Tell the Whole Story
The next time you see a post saying:
“People vaccinated against COVID-19 may be sick…”