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Serum Institute of India seeks regular marketing authorisation from DCGI for Covishield

The Pune-based SII has submitted the final phase 2/3 clinical study report of India with its application for grant of regular market authorization for Covishield, an official source said.

October 25, 2021 / 20:17 IST
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(Image: AFP)

Pointing out that over 100 crore doses of Covishield have been supplied in India and many other countries, Serum Institute of India on Monday sought regular marketing approval for the COVID-19 vaccine, which is currently authorized for emergency use in the country, official sources said.

The application sent to the Drugs Controller General of India (DCGI) by Prakash Kumar Singh, Director, Government and Regulatory Affairs at Serum Institute of India (SII) comes just a couple of days after Prime Minister Narendra Modi held a meeting with domestic COVID-19 vaccine manufacturers.

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If the DCGI grants regular marketing authorisation, Covishied will be the second vaccine in the world to receive such approval. Pfizer-BioNTech's COVID-19 vaccine has received full US FDA approval for use in individuals 16 years of age and older.

The cumulative COVID-19 vaccines administered in the country has exceeded 102.27 crore. Of all the vaccine doses administered, around 90 per cent are Covishield and close to 10 per cent are Bharat Biotech's Covaxin. Less than one per cent of the doses given are Sputnik V.

COVID-19 Vaccine
Frequently Asked Questions

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How does a vaccine work?

A vaccine works by mimicking a natural infection. A vaccine not only induces immune response to protect people from any future COVID-19 infection, but also helps quickly build herd immunity to put an end to the pandemic. Herd immunity occurs when a sufficient percentage of a population becomes immune to a disease, making the spread of disease from person to person unlikely. The good news is that SARS-CoV-2 virus has been fairly stable, which increases the viability of a vaccine.

How many types of vaccines are there?

There are broadly four types of vaccine — one, a vaccine based on the whole virus (this could be either inactivated, or an attenuated [weakened] virus vaccine); two, a non-replicating viral vector vaccine that uses a benign virus as vector that carries the antigen of SARS-CoV; three, nucleic-acid vaccines that have genetic material like DNA and RNA of antigens like spike protein given to a person, helping human cells decode genetic material and produce the vaccine; and four, protein subunit vaccine wherein the recombinant proteins of SARS-COV-2 along with an adjuvant (booster) is given as a vaccine.

What does it take to develop a vaccine of this kind?

Vaccine development is a long, complex process. Unlike drugs that are given to people with a diseased, vaccines are given to healthy people and also vulnerable sections such as children, pregnant women and the elderly. So rigorous tests are compulsory. History says that the fastest time it took to develop a vaccine is five years, but it usually takes double or sometimes triple that time.
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