HomeNewsIndiaIndia's COVID-19 vaccine: Who'll get it, when and how - All you need to know

India's COVID-19 vaccine: Who'll get it, when and how - All you need to know

As the DCGI’s approval clears the way for the roll-out of at least two vaccines in India in the coming days, here is all you need to know about the vaccination drive in the country

January 04, 2021 / 11:07 IST
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Representative image: Reuters
Representative image: Reuters

India's drugs regulator has approved the Oxford COVID-19 vaccine Covishield, manufactured by the Serum Institute of India (SII), and indigenously developed Covaxin of Bharat Biotech for restricted emergency use in the country. The Drugs Controller General of India (DCGI) granted approval on the basis of recommendations by a COVID-19 Subject Expert Committee (SEC) of the Central Drugs Standard Control Organisation (CDSCO).

As the DCGI’s approval clears the way for the roll-out of at least two vaccines in India in the coming days, here is all you need to know about the vaccination drive in the country:

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> Will the COVID-19 vaccine be given to everyone simultaneously?

The government has identified high-risk groups to be vaccinated on priority.

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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