Dr Anthony Fauci - Director, US Institute of Allergy and Infectious Diseases

The conflicting currents in the course of the coronavirus pandemic are striking. On the one hand, the UK government is rolling out the first post-trial public vaccination programme. In the US, the second surge of the virus is generating unprecedented levels of infection. Stephen Sackur speaks to Dr Anthony Fauci, the US government's top expert and adviser on infectious diseases. Can the US quickly turn the tide on what looks like a public health disaster?