Vaccine Effectiveness


Breakthrough cases prove that even if I get the vaccine, I might still get COVID-19. So why bother?


COVID vaccines have been shown to be very powerful in preventing more severe disease and the need for hospitalization. Breakthroughs occur at a much, much lower rate for those who have been vaccinated versus those who are unvaccinated.

The breakthroughs have been occurring more frequently with the newer variants because of the high level of infectiousness of these variants. But people having breakthroughs generally have a much more mild infection — more like a common cold or upper respiratory infection. The vaccines prevent severe disease and complications and allow people to return to their healthy selves more quickly.

Boston University: