Yes, Whitty claimed that transmission stopped in Wuhan because they reached >20% saturation and "a degree of herd immunity". Can& #39;t find the original clip but @danielfalush quotes it here ( https://www.lbc.co.uk/radio/presenters/james-obrien/uk-strategy-coronavirus-alarm-herd-immunity/)">https://www.lbc.co.uk/radio/pre... and other UK govt. advisers have since repeated it.
Astonishing and deeply worrying that top public health officials in two of the most developed countries on earth can make such easily-rebutted and consequential errors.