• IASbaba
  • December 29, 2022
  • 0
Science and Technology
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Context: Ramping up its anti-Covid measures amid a surge in cases in other countries, mainly China, the Government has added Bharat Biotech’s intranasal vaccine Incovacc to its vaccination programme as a mix-and-match, or heterologous, booster dose.

About Incovacc:

  • Incovacc is the world’s first intranasal vaccine to be approved as a booster dose.
  • iNCOVACC, co-developed by Bharat Biotech and the U.S.-based Washington University, was approved in November for ‘restricted emergency use’ for those aged 18 or older.
  • The nasal vaccine is approved both as a primary dose and a heterologous booster.
  • Unlike Covaxin, which is an inactivated coronavirus injected along with an adjuvant, iNCOVACC is an adenovirus-vectored vaccine with a “prefusion stabilised spike protein”, which is more like the technology employed in the Covishield vaccines.


  • It promises to become an important tool in mass vaccinations during pandemics and endemics.
  • It is easy to administer as it is non-invasive and does not require trained health care workers.
  • It also eliminates needle-associated risks such as injuries and infections, has higher compliance and is scalable as far as manufacturing is concerned.
  • The sprays don’t need to be refrigerated.

Source: Indian Express

Previous Year Questions

Q.1) In the context of vaccines manufactured to prevent COVID-19 pandemic, consider the following statements:

  1. The Serum Institute of India produced COVID-19 vaccine named Covishield using mRNA platform.
  2. Sputnik V vaccine is manufactured using vector based platform.
  3. COVAXIN is an inactivated pathogen based vaccine.

Which of the statements given above are correct? (2022)

  1. 1 and 2 only
  2. 2 and 3 only
  3. 1 and 3 only
  4. 1, 2 and 3

Q.2) Consider the following statements in respect of probiotics :

  1. Probiotics are made of both bacteria and yeast.
  2. The organisms in probiotics are found in foods we ingest but they do not naturally occur in our gut.
  3. Probiotics help in the digestion of milk sugars.

Which of the statements given above is/are correct? (2022)

  1. 1 only
  2. 2 only
  3. 1 and 3
  4. 2 and 3


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