And because immunity can fade over time, many other experts believe achieving a true constant state of herd immunity will be impossible. Asked about how far away Britain was from achieving herd immunity, Professor Woolhouse told Times Radio yesterday: 'We're pretty close. But one expert told MailOnline that Covid-19 is here to stay and that the key is reaching a 'herd immunity threshold'. Advertisement'I suspect we're going to be bouncing around either side of the herd immunity threshold for quite a few months to come, probably over the whole winter.' But he warned the herd immunity threshold could be 'raised that bit higher' if people behave differently or 'transmissions start to pick up again'.

Source: Daily Mail August 09, 2021 08:53 UTC