US drugmaker Pfizer and German partner BioNTech are the COVID-19 vaccine trailblazers. On Nov 18, they became the first in the world to release full late-stage trial data. Britain's AstraZeneca is seeking approval for its vaccine in Britain after announcing interim late-stage trial data on Nov 23. However, it is not clear how the regulator will deal with the different dosages in the efficacy data in its assessment. Russia said on Nov 24 its Sputnik V vaccine, developed by the Gamaleya Institute, was 91.4% effective based on interim late-stage trial results.

Source: bd News24 December 19, 2020 00:45 UTC