Pfizer becomes first Covid vaccine to gain full FDA approval
Pfizer's two-dose Covid-19 vaccine has received full approval from the US Food and Drug Administration (FDA) - the first jab to be licensed in the nation.
The vaccine had initially been given emergency use authorisation. Its two jabs, three weeks apart, are now fully approved for those aged 16 and older.
The approval is expected to set off more vaccine mandates by employers and organisations across the country.
It comes amid lingering vaccine hesitancy among many Americans.