The two vaccines- Covaxin and Covishield were designed on the blueprint of the virus variant, called B1, that became the dominant strain in India by last April.from Top India News- News18.com https://ift.tt/3yfaTmT
The two vaccines- Covaxin and Covishield were designed on the blueprint of the virus variant, called B1, that became the dominant strain in India by last April.