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HomeNewscoronavirusBharat Biotech's COVID-19 vaccine gets DCGI nod to conduct human trials

Bharat Biotech's COVID-19 vaccine gets DCGI nod to conduct human trials

Bharat Biotech is developing COVID-19 vaccine in collaboration with the Indian Council of Medical Research (ICMR) and National Institute of Virology (NIV), Pune.

June 30, 2020 / 07:31 IST
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The Drug Controller General of India (DCGI) on June 29 granted permission to Bharat Biotech to initiate Phase I and II human clinical trials of its novel coronavirus, or COVID-19 vaccine.

The permission to conduct human trials was granted after the company submitted results generated from pre-clinical studies, demonstrating safety and immune response.

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"Results from these studies have been promising and show extensive safety and effective immune responses," the management said.

Human clinical trials are scheduled to start across India in July.

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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