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COVID-19 | No science behind night curfews, says WHO Chief Scientist Soumya Swaminathan

'What we can expect to see in India is a surge of Omicron cases. I think it is just the beginning now in some of the cities and is going to infect a lot of people'

January 05, 2022 / 10:31 IST
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File Image of World Health Organization Chief Scientist Soumya Swaminathan

The World Health Organisation (WHO) Chief Scientist Soumya Swaminathan said there is no science behind night curfews in India.

In an interview with CNBC-TV18, Dr Swaminathan was dismissive of the move to slap night curfews. “Things like night curfews, there’s really no science behind it. One has to take a combination of evidence-based public health measures. We have enough data from the last two years,” she said.

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Asked what should be the government response to the surge in cases due to Omicron, she said: “Politicians and policymakers need to start balancing the scientific and evidence-based methods we have to control COVID-19 transmission, to reduce its impact on people – particularly reducing deaths and hospitalisations, while at the same time, keeping economies open, making sure livelihoods are not impacted, because people have suffered enough.”

Catch all Coronavirus Omicron India LIVE Updates here

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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