Why is no-one talking about herd immunity?

At the start of the pandemic, it is generally accepted that Boris Johnson wanted to let the virus spread and form some kind of herd immunity amongst the population. It was only when it became apparent that this approach would overwhelm the hospitals and kill over a million that he made a sudden u-turn and introduced the first lock down. Ever since then, the phrase “herd immunity” seems to have been banished from the language of both politicians and scientists.

And yet, in the UK, herd immunity appears to be exactly what we are looking for. All restrictions have been removed and the virus numbers are really high. But because of vaccination, relatively few are getting really ill and dying. So long as this remains the case, politicians and epidemiologists seem happy to let Covid-19 spread. By doing so we are increasing immunity across the population, whether in children, where maybe 60% have now had Covid, or amongst vaccinated adults. In either case, every time someone gets ill, their immunity increases, and their chance of getting seriously ill decreases.

I think what we are really aiming towards is a situation where we all live with Covid. Children will be expected to catch it when young and it is a mild disease (think of chickenpox as an analogy). People will then catch it again a couple of times during their life but each time, natural immunity will mean it is not generally serious. If necessary vaccinations will top us up. Herd immunity will have been reached.

Personally I see only two problems with this approach. The first is that the rest of the world is not following it. Instead, tight lockdowns continue to be used. So will the UK become a plague state that everyone else is scared to visit? The second is that leaders are not being honest that this is our approach. They are terrified that when someone dies, they will be blamed for letting it happen. But if this is what they are doing they should be honest about it.

What do you think? Is herd immunity a goal worth aiming for, or should we go back to locking down the disease?

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