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Coronavirus second wave: Lessons India can learn from Europe

The marked decrease in Covid-19 cases, is quite a contrast to the rising cases in Europe.

October 25, 2020 / 13:47 IST
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The number of daily new coronavirus cases in India has now fallen to half from the peak of almost a lakh in mid-September. India reported 53,370 new Covid-19 cases on October 24. The total Covid cases in India is around 7.81 million cases, of which 7.02 million people have recovered. There are about 1,18,000 deaths so far.

Maharashtra, the worst-hit state, recorded 6,417 cases on October 24, a decline of 66 percent from its peak in September.

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The declining trend of Covid-19 cases in India could be possible due to higher testing and contact tracing, use of face masks and also possibly due to some level of herd immunity at play.

Jayaprakash Muliyil, a leading Indian epidemiologist attributes this to virus taking its own 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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