In the last few days, you may have heard the good news about three coronavirus vaccines. A week ago, the Pfizer vaccine had yielded early results and was then claimed to have succeeded up to 90 per cent. Two days ago, another US pharma company Moderna claimed to have more than 94 per cent success of its corona vaccine. This comes as a good news and with 95 per cent success, Pfizer is now at the forefront of the world. -So far, it was being considered a challenge to store the Pfizer vaccine at a temperature of minus 70 °c.

Source: dna November 19, 2020 01:30 UTC