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Last Updated : Jul 29, 2020 07:01 PM IST | Source: Moneycontrol.com

Coronavirus Essential podcast | Will lockdown be extended in Mumbai?; Moderna's vaccine protects monkeys from COVID-19

Tune in to Coronavirus Essential podcast with Sakshi Batra, as she takes you through the top updates on the pandemic.

As Unlock 2.0 ends on July 31, it is unclear whether the lockdown in Mumbai will continue. Over the past few days the city, which used to be a hotspot, has been recording a lesser number of cases.

While we know that Moderna has begun an extensive trial involving 30,000 volunteers, the company has published its findings on monkey trials on Tuesday. The results said that 16 monkeys had received vaccine dosage and were protected against COVID-19.


Moderna has also revealed its plans to price the vaccine at $50 to $60 per course.

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 podcast with Sakshi Batra, as she takes you through the top updates on the pandemic.
First Published on Jul 29, 2020 07:01 pm