The AstraZeneca Covid-19 vaccine provides a strong bump to immunity when given as a third dose, or booster, more than six months after the second shot, according to a study on.wsj.com
@WSJ4 years ago
The AstraZeneca Covid-19 vaccine provides a strong bump to immunity when given as a third dose, or booster, more than six months after the second shot, according to a study on.wsj.com
