Less than 10% of people in Britain are immune to coronavirus. There's no room for mistakes

This isn’t a game. Recent data from both Public Health England and the Office for National Statistics shows that less than 10% of the UK population is now immune to this virus. Reliable antibody tests at scale from multiple sources indicate approximately the same figure. We must discard any foolish optimism about “immunological dark matter” that will mysteriously prevent infection, or any other clutching at straws. The great majority of us are still susceptible to this virus, and if we allow it to transmit easily between us we will see a second wave – possibly during the winter, where it may be even more deadly.