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Share the QR code < / P > < p > with friends and circles of friends by wechat scanning code < / P > < p > (observer online news) on August 10 local time, Andrew Pollard, head of Oxford AstraZeneca vaccine research and development team and professor of Oxford University, said that it is impossible to achieve mass immunization in the face of the new "delta" crown virus strain, Because the strain can infect vaccinated people

according to the British "Guardian" reported on August 10th, Pollard on the same day to the British COVID-19 cross Party Parliamentary Group (APPG) said, "the vaccine failed to stop the spread of COVID-19 fact, means to reach the crowd immune threshold in the crowd is only a" myth ". p> < p > "the problem is that this virus is not measles. If 95% of people are vaccinated against measles, the virus will not spread among people." Pollard pointed out, "the delta variant can still infect vaccinated people. This means that anyone who has not been vaccinated may be infected with the virus in the future... We have no way to (completely) stop the spread of the virus. "

, the guardian, said that although existing vaccines are very effective in preventing serious diseases and deaths in the new crown, they do not prevent COVID-19 from being infected by fully vaccinated people. Citing research data from Imperial College London, the guardian pointed out that compared with unvaccinated people, fully vaccinated people aged 18 to 64 had a reduced risk of infection by about 49%. The study also showed that when fully vaccinated people were exposed to the new crown, COVID-19 was less likely to be positive than the unvaccinated person (from 7.23% to 3.84%). p> < p > is it necessary to inoculate "reinforcing needle"? Should children be vaccinated < p > it is reported that about 75% of adults in Britain have been vaccinated with two doses of new crown vaccine. On August 10 local time, British health secretary Sajid Javid said that the UK had made plans to provide the new crown vaccine "booster shot" to the most vulnerable groups in the UK from next month, and will also provide influenza vaccine < p > but Pollard questioned the need for "booster needles". "If there is evidence that the number of hospitalizations or deaths among vaccinated people has increased, we need to strengthen the injection, but that is not the case at the moment," he said < p > "even if the antibody level induced by the vaccine decreases, our immune system may remember the vaccine for decades and provide a certain degree of protection when exposed to the virus." "So now we don't need to panic. We haven't seen a breakthrough severe problem yet," Pollard said < p > according to the guardian, whether to vaccinate children under the age of 16 with the new crown vaccine, as in the United States, Ireland and Israel, has also triggered scientific discussion in the UK. The Joint Committee on vaccination and immunization (JCVI) recommends that only vulnerable children aged 12 to 15 and children living with adults at risk be vaccinated. Some critics believe that rich countries with high adult vaccination coverage, such as the UK, should not hoard children's vaccines, but donate them to poor countries, because many countries rarely vaccinate any high-risk groups < p > Devi Sridhar, President of global public health at the University of Edinburgh, pointed out that the only vaccine authorized for children aged 12 to 15 in the UK is Pfizer / biontech vaccine. "In fact, the real question is not whether to vaccinate the world or children, but what we should do on the issue of 'booster shots' in rich countries, because those are the vaccines that can be shipped abroad," she said < p > she also said, "fortunately, we have a very effective AstraZeneca vaccine for the world. But it does not solve the problem of vaccination for our children. " < p > < p > on the same day, the Ministry of health and social health (DHSc) announced that 75% of adults in the UK had received two doses of vaccine and 89% had received one dose. British Prime Minister Johnson called it "a great national achievement that we should all be proud of" < p > this article is the exclusive manuscript of observer.com and cannot be reproduced without authorization
2023-03-22 10:04:40