“They should also have excluded from ‘susceptible’ a large subset of the youngest children, who appear not to become infected, probably because their immature biology means their cells express less of the spike protein receptor, called ACE2. I have not assumed all young children don’t participate in transmission, but believe a two thirds value is very conservative. It’s not material anyway,” Yeadon wrote
“So SAGE is demonstrably wrong in one really crucial variable: they assumed no prior immunity, whereas the evidence clearly points to a value of around 30% (and nearly 40% if you include some young children, who technically are ‘resistant’ rather than ‘immune’),” wrote Yeadon
And considering the reality of herd immunity, when susceptibility to a virus falls this low, at around 28 to 35%, “that population can no longer support an expanding outbreak of disease,” and thus the virus “wanes and disappears.”
“The pandemic is effectively over and can easily be handled by a properly functioning NHS (National Health Service). Accordingly, the country should immediately be permitted to get back to normal life.” concludes Yeadon.