The global medical community is developing the COVID-19 vaccine at an unprecedented speed and scale, and the governments of various countries have great expectations for the vaccine to be released and put into use. 最近, several vaccines under development in the world have been reported frequently. Last month, several well-known vaccines announced the effectiveness of Phase III clinical trials; 十二月 2, the British government approved the use of COVID-19 vaccine developed by Pfizer and German biotechnology companies; Mardner also announced that it will test COVID-19 vaccine on children … Despite this, Nature pointed out in the report that this does not mean that the vaccine will be fully vaccinated soon. Before that, solving the problems of vaccine hesitation, supply logistics, distribution, pricing and payment will help clear the obstacles.
Pfizer Pharmaceuticals Co., 有限公司. announced on November 9 that the COVID-19 vaccine developed by Pfizer in cooperation with German Biotechnology Company was more than 90% effective in Phase III clinical trials. The Independent reported on November 26th that American pharmaceutical company Mardner announced that the candidate COVID-19 vaccine developed by them was more than 90% effective. 此外, Oxford University and AstraZeneca Company also claimed that the average curative effect of a candidate COVID-19 vaccine developed by them was 70.4%. Early studies have shown that these candidate vaccines can stimulate the immune response. The latest experiment proves that this immune response can protect people from COVID-19.