HomeNewsIndiaGlobal concern grows as COVID-19 variant ravages rural India

Global concern grows as COVID-19 variant ravages rural India

The second wave erupted in February, inundating hospitals and medical staff, as well as crematoriums and mortuaries.

May 13, 2021 / 08:01 IST
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Source: Reuters
Source: Reuters

India's coronavirus death toll crossed 250,000 on Wednesday in the deadliest 24 hours since the pandemic began, as the disease rampaged through the countryside, leaving families to weep over the dead in rural hospitals or camp in wards to tend the sick.

The second wave erupted in February, inundating hospitals and medical staff, as well as crematoriums and mortuaries.

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Experts still cannot say for sure when numbers will peak and concern is growing about the transmissibility of the variant that is driving infections in India and spreading worldwide.

Indian state leaders clamoured for vaccines to stop the second wave and the devastation it has wrought, urging Prime Minister Narendra Modi to stop exporting doses, ramp up production and help them procure urgent supplies from overseas.

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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