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mRNA Vaccine

  • IASbaba
  • June 29, 2022
  • 0
Science and Technology
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In News: The country’s first homegrown mRNA Covid-19 vaccine developed at Pune’s Gennova Biopharmaceuticals has received emergency use for the age group 18 and above.

  • The Drug Controller General of India (DCGI) approved the two-dose mRNA vaccine.
  • The vaccine is stable for storage at 2-8 degree C.
  • Vaccines based on mRNA require ultra-low temperature conditions for storage and distribution.

What are mRNA vaccines?

  • mRNA vaccines trick the body into producing some of the viral proteins itself.
  • They work by using mRNA, or messenger RNA, which is the molecule that essentially puts DNA instructions into action.
  • Inside a cell, mRNA is used as a template to build a protein

How it works?

  • To produce an mRNA vaccine, scientists produce a synthetic version of the mRNA that a virus uses to build its infectious proteins.
  • This mRNA is delivered into the human body, whose cells read it as instructions to build that viral protein, and therefore create some of the virus’s molecules themselves.
  • These proteins are solitary, so they do not assemble to form a virus.
  • The immune system then detects these viral proteins and starts to produce a defensive response to them.

Source: Indian Express

Previous Year Questions

Q.1) With reference to recent developments regarding ‘Recombinant Vector Vaccines’, consider the following statements: (2021)

  1. Genetic engineering is applied in the development of these vaccines.
  2. Bacteria and viruses are used as vectors.

Which of the statements given above is/are correct?

  1. 1 only
  2. 2 only
  3. Both 1 and 2
  4. Neither 1 nor 2

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