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The experts say we need 70-80% of the population to get COVID-19 to achieve herd immunity. Let’s assume they’re wrong (it’s certainly possible, they have been before.) Let’s assume they’re being way overly cautious and we actually only need 40% infection for herd immunity.
No respectable epidemiologist will say that 70-80% is needed for herd immunity. We simply do not know. Per @SunetraGupta at Oxford, a world leading infectious disease epidemiologist, we may only need 10-20% seropositivity, already reached by some places.https://www.medrxiv.org/content/10.1101/2020.07.15.20154294v1 …
