https://www.theguardian.com/world/2021/aug/10/delta-variant-renders-herd-immunity-from-covid-mythical

“The problem with this virus is [it is] not measles. If 95% of people were vaccinated against measles, the virus cannot transmit in the population,”

“The Delta variant will still infect people who have been vaccinated. And that does mean that anyone who’s still unvaccinated at some point will meet the virus … and we don’t have anything that will [completely] stop that transmission.”


“The time we would need to boost is if we see evidence that there was an increase in hospitalisation – or the next stage after that, which would be people dying – amongst those who are vaccinated. And that is not something we are seeing at the moment,”


Больше разъяснений/деталей тут