More than 4 million doses of the coronavirus vaccine were reported administered in the past 24 hours, setting a new record and bringing the seven-day average to more than 3 million a day, the US Centers for Disease Control and Prevention reported Saturday.More than 4 million doses of the coronavirus vaccine were reported administered in the past 24 hours, setting a new record and bringing the seven-day average to more than 3 million a day, the US Centers for Disease Control and Prevention reported Saturday.