See it's funny because chief scientific advisory there talking about herd immunity again a day after someone else shared something quite the opposite to be reality. People choose which side to fall on with their opinion.
Taking personal opinions aside however. Perhaps this is the problem , not just here but everywhere. Nobody agrees. Entire scientific communities around the world, experts in their field and nobody seems to agree. Herd immunity isn't possible and yet it is. Masks aren't effective according to WHO but countries are telling their people differently. There's all these cures/ vaccines about the place including more than one in the UK (as the government bought from more than one place) , yet no collaboration , no global coming together to save everyone.
Everything is fragmented, broken and just sums up the world today. The only thing people can agree on is what the virus is, even the source of it is disputed.
Perhaps the problem isn't the virus at all but how the world have reacted to it, how they advise about it and how convoluted everything is. There is no one answer but nobody seems to be trying for one anyway.
Meanwhile the media print horror story and scare lingering every day and people soak the misinformation in again and again. It's almost like the perfect scenario for those wanting to profit in a crisis, fuel the fear through the press and never settle on a solution for everyone to get behind.
When something threatens the entire world and the world doesn't come together, that is a sorry state of affairs.