HomeNewsIndiaCOVID-19: Know all about Biological-E’s Corbevax that could be India's cheapest vaccine against coronavirus

COVID-19: Know all about Biological-E’s Corbevax that could be India's cheapest vaccine against coronavirus

Corbevax is a recombinant protein subunit vaccine, which means it is made up of a specific part of the novel coronavirus, which is spike protein.

June 07, 2021 / 16:14 IST
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The government has said that it will be making an advance payment of Rs 1500 crore for COVID-19 vaccine Corbevax, the first such order for unapproved shots. (Representative image)
The government has said that it will be making an advance payment of Rs 1500 crore for COVID-19 vaccine Corbevax, the first such order for unapproved shots. (Representative image)

The central government has inked a deal with domestic vaccine maker Biological-E for 30 crore doses of its COVID-19 vaccine called Corbevax, which is currently undergoing phase- 3 clinical trials after showing promising results in phase 1 and 2 clinical trials.

The government has said that it will be making an advance payment of Rs 1,500 crore for the vaccines, the first such order for unapproved shots. It is likely to be available in the next few months, the union health ministry said in a statement issued on June 3.

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Once the vaccine gets emergency use approval (EUA) and is launched, it could potentially be the cheapest COVID-19 vaccine available in India, reported News18.

How Corbevax works?

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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