Question

There are three major types of vaccines being used for Covid. These are Pfizer, Astrazeneca (Covishield) and Covaxin. Research on how these three vaccines use genetic materials (DNA or RNA) for developing immunity in the human body. Write a short review on the above​

Answer 1

Answer:

Countries across the globe have started coronavirus vaccination programme in a fight against the COVID-19 disease caused by SARS-CoV-2. On December 11, 2020, the U.S. Food and Drug Administration issued the first emergency use authorisation to Pfizer-BioNTech’s COVID-19 vaccine for its use in the U.S. among individuals 16 years of age and older. Soon Pfizer-BioNTech’s COVID-19 was rolled out in the United Kingdom (U.K.), Canada and several mainland European countries. Other vaccine candidates like Oxford-AstraZeneca’s Covishield, Bharat Biotech’s Covaxin, Moderna’s COVID-19 vaccine among others have also got emergency use licenses in various countries. India too initiated its coronavirus vaccination drive from January 16 with restricted emergency use provided to Covishield and Covaxin.