But Anthony Costello, a paediatrician and former World Health Organization director, said that the UK government was out of kilter with other countries in looking to herd immunity as the answer. It could conflict with WHO policy, he said in a series of Twitter posts, which is to contain the virus by tracking and tracing all cases. He quoted Dr Tedros Adhanom Ghebreyesus, the WHO director general, who said: “The idea that countries should shift from containment to mitigation is wrong and dangerous.”
Herd immunity might not even last, Costello said. “Does coronavirus cause strong herd immunity or is it like flu where new strains emerge each year needing repeat vaccines? We have much to learn about Co-V immune responses.” Vaccines, he said, were a much safer way of bringing it about.
Ministers look to have given up on containment in favour of a novel approach some experts are wary of
www.theguardian.com
Tác giả bài viết của the guardian cũng viết là miễn dịch cộng đồng thường được dùng để chỉ biện pháp dùng vaccine để tạo miễn dịch trong dân, còn kiểu của Anh nhợn là mới và đáng báo động.
Herd immunity is a phrase normally used when large numbers of children have been vaccinated against a disease like measles, reducing the chances that others will get it. As a tactic in fighting a pandemic for which there is no vaccine, it is novel – and some say alarming.