Britain's Prince William, Duke of Cambridge, wearing PPE (personal protective equipment), of a face mask or covering as a precautionary measure against spreading COVID-19, talks to a patient participating in a COVID-19 vaccine trial at Oxford Vaccine Group's facility at Churchill Hospital in Oxford, west of London on June 24, 2020, during a visit to learn more about their work to establish a viable vaccine against coronavirus. (Photo by Steve Parsons / POOL / AFP) (Photo by STEVE PARSONS/POOL/AFP via Getty Images)