This week there have been expert comments on herd immunity, and one view is that this can't be achieved simply by natural infection of the population.
So a vaccine, which builds confidence, appears to be the only exit strategy. Even with a vaccine I can't see momentum building for some years after initial deployment.
It's important to retain a degree of circumspection when reading stuff about so-called 'herd immunity'. Much of it is being pushed by people with less than pure motives.
