//AstraZeneca: Shot will be effective against COVID-19 variant

AstraZeneca: Shot will be effective against COVID-19 variant

LONDON (AP) — The head of drugmaker AstraZeneca, which is developing a coronavirus vaccine widely expected to be approved by U.K. authorities this week, says researchers believe the shot “should remain effective” against a new variant of the virus driving a rapid surge in infections in Britain. AstraZeneca chief executive