Public Health: Coronavirus Regulations

To follow on from what my right hon. Friend said about our strategy being to suppress the virus until a vaccine makes us safe—until science saves us—the Prime Minister yesterday was, very wisely, cautious in his answer to our hon. Friend the Member for Wycombe (Mr Baker) on the vaccine. What if it does not come, and what if it comes and the efficacy of it is not good enough, and there are challenges with roll-out and all sorts of other challenges that he and I know about—the anti-vaxxers notwithstanding? Can he give those of us who are nervous about—