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Last Updated : Aug 12, 2020 07:22 PM IST | Source: Moneycontrol.com

Coronavirus Essential podcast | India may have to wait longer for Russian vaccine; villagers tire of COVID-19 rules as rural cases surge

Tune in to Coronavirus Essential with Sakshi Batra for the latest news on the pandemic.

Russia has gone big in announcing about its COVID-19 vaccine called Sputnik V. However, many countries have pointed out the insufficient trials.

India's Central Drugs Standard Control Organisation has to ask Russia to conduct phase 2 and phase 3 trials within India before making it available for Indian citizens.


Meanwhile, in a recent Reuters report from two dozen villages, it was found that many people have given up social distancing and masks, believing that the virus may not be a serious threat.

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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Tune in to Coronavirus Essential with Sakshi Batra for the latest news on the pandemic.
First Published on Aug 12, 2020 07:22 pm