Pfizer said its vaccine can protect against Covid-19 for at least six months, but experts say that protection will likely last longer.
Pfizer said its vaccine can protect against Covid-19 for at least six months, but experts say that protection will likely last longer.
A booster shot of the Covid-19 vaccine could be required within 12 months of your first dose according to Pfizer’s CEO, Albert..
WBZ TV's Kate Merrill reports.