疫苗对南非变异毒株可能无效

anzbank

https://www.bloomberg.com/news/articles/2021-01-20/south-african-study-into-new-virus-strain-raises-vaccine-fears

A study by South African scientists into the new coronavirus variant driving a resurgence of cases in the country raises concern about the efficacy of vaccines and a new class of therapies.

Half the blood samples taken from a small group of people to have recovered from Covid-19 didn’t have the antibodies needed to protect against the 501Y.V2 strain identified last month, according to the paper by South Africa’s National Institute for Communicable Diseases.

In the other half, antibody levels were reduced and the risk of re-infection couldn’t be determined, according to the institute.

The NICD findings may “foreshadow reduced efficacy of current spike-based vaccines,” the scientists said. They also suggest that treatment with plasma from donors who’ve had the coronavirus may not be successful in those with this variant.

kazama2007

也不是完全无效，而是新变种会一点点慢慢的适应疫苗，直到完全破解疫苗。但这也是需要一个漫长的过程的，不会一蹴而就。

同时，现在全球的研究团队都早已盯上这些新变种了，有些团队肯定已经开始研究专门针对新变种的疫苗了，这个并不难，而且可以在原有疫苗的平台上做调整就可以了，而到时针对新变种的疫苗出来后，就不需要花这么多时间去做三期实验了，可以迅速审批投入使用，因为新疫苗和原有疫苗都会是从同一个平台出来的所以不需要再次花时间论证安全性，主要针对有效性就可以了。

keepower

mRNA疫苗做相应调整也就几个小时的事情，当然从实验室到生产线需要更长的时间。但绝对是其他技术难以媲美的优势。

太极宗师001

所以还要等2-3年才能平静下来。