Consider the following statements about mRNA vaccines: 1. These vaccines contain weakened or inactivated pathogens. 2. mRNA vaccines instruct cells to produce a viral protein that triggers an immune response. 3. The Serum Institute of India produced the COVID-19 vaccine named Covishield using the mRNA platform. How many of the statements given above is/are correct? |ForumIAS

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[A] Only one

[B] Only two

[C] All three

[D] None

Answer: A

Notes:

Explanation:

Statement 1 is incorrect; mRNA vaccines do not contain weakened or inactivated pathogens.
Statement 2 is correct; mRNA vaccines use messenger RNA to instruct cells to produce a viral protein that triggers immunity.
Statement 3 is incorrect; Covishield is produced using a viral vector platform, not an mRNA platform.

Source- IE