Embarking on what he called a "wartime undertaking", US President Joe Biden has stepped up the federal response to Covid-19. Some 10 new executive orders signed on Biden's first day in office tackle everything from the logistics of the vaccination rollout to mask-wearing, as the new president warns the country's death toll could soon reach half a million. We discuss Biden's pandemic plan with George Rutherford, a Professor of Epidemiology and Health Administration at the University of California, San Francisco.
