US gives final clearance to Pfizer’s Covid-19 shots for children aged five to 11

Pfizer’s Covid-19 vaccine (Pfizer via AP)

US health officials have given the final sign-off to Pfizer’s child-size Covid-19 shot, a major expansion of the nation’s vaccination campaign.

The Food and Drug Administration (FDA) had already authorised the shots for children aged five to 11 – doses just a third of the amount given to teenagers and adults.