The WHO has taken a strong stance against England's plans for reopening over the last few days, and a spokesperson has used perhaps some of the strongest words yet.
Dr David Nabarro, the WHO's special envoy on COVID-19, said the "pandemic is advancing ferociously around the world" and "I don't think we've anywhere near got through the worst of it".
Asked about the government's switch to personal responsibility, he told Radio 4's Today programme: "All this doesn't quite fit with the position that was taken by Britain, along with other nations, some months ago when there was a real effort to try to prevent large numbers of people getting the disease, partly because of the risk of death and partly because of the recognition of the risk of long COVID.
"It's necessary to be unequivocal on this particular challenge. What does urging caution mean? It's important that everybody knows the best possible advice on how to prevent themselves being infected.
"I accept that vaccination has changed the nature of the equation in the UK but quite honestly from any point of view it's too early to be talking about massive relaxation or freedom when the outbreak curve is on such a sharp ascent.
"Yes, relax, but don't have these mixed messages about what's going on. This dangerous virus hasn't gone away, it's variants are coming back and are threatening those who have already been vaccinated - we have to take it seriously."