CDC head overrules advisers to allow COVID-19 boosters be offered to at-risk workers, and Biden urges eligible to act fast

In an unusual move, the head of the Centers for Disease Control and Prevention overruled a panel of advisers' recommendation that booster doses of a COVID-19 vaccine be offered only to people over 65 and those with weakened immune systems, allowing them to also be offered to front line workers, including in health care, schools and supermarkets.