- Coronavirus pandemic
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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.
In a statement, the FDA said its review for approval included data from approximately 44,000 people.
Acting FDA commissioner Janet Woodcock said that the public "can be very confident" the vaccine meets high safety, effectiveness and manufacturing quality standards.
The vaccine, which will now be marketed as Comirnaty, was found to be 91% effective in preventing Covid-19.
It still has emergency use authorisation for children aged 12 to 16.