Ross Clark Ross Clark

We may be closer to herd immunity than previously thought

Are we a lot closer to achieving herd immunity with Covid-19 than has been made out? It is a question which has been asked many times, not least because the disease has a tendency to fizzle out in communities where around a fifth of people have been infected – as has been observed in London, New York, the Brazilian city of Manaus and the Diamond Princess cruise ship.

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