infection.
But if “work” means reduce the risk of severe illness, hospitalization and death, the evidence is much stronger.
The CDC reports that COVID-19 vaccination reduces the risk of critical illness and hospitalization, although the amount of protection changes over time.
WHO likewise states that COVID-19 vaccines continue to provide protection against severe disease and death.
This is an important distinction.
A person can test positive while vaccination is still providing meaningful protection against the worst outcomes.
What About Long COVID?
Another important concern is what happens after the initial
