BBCNEWS HARDtalk August 8, 2021 12:53:00
Well, i think if we were in a position where we were seeing significant breakthrough amongst vaccinated individuals and if the hospitals were filling up again with vaccinated individuals, then i think that is a very different situation. we're not in that position. all of the effectiveness data around the world is still showing remarkable protection against severe disease and death by the vaccines. we have to keep looking. we don't know whether that protection will wane. and i think what some governments are doing is looking at this question of, well, maybe the vaccine protection will wane over...