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India has hit the 100-crore vaccination mark

India reaches 100 crore vaccinations: It took India nine months to administer 100 crore jabs, with 74 percent of the adult population getting the first dose. More than 31 percent are fully vaccinated

October 21, 2021 / 11:36 IST
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India crossed the 100-crore vaccine dose mark on October 21, a milestone in its fight against coronavirus, overcoming logistic challenges and hesitancy as healthcare workers climbed mountains, crossed rivers and walked deserts to jab adult Indians against the dreaded virus.

It took India nine months to administer 100 crore jabs, with 74 percent of the adult population getting the first dose. More than 31 percent are fully vaccinated

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One billion doses is an achievement for the country that was brought to its knees by a devastating second wave in April-May that saw infections and daily deaths zoom to record highs.

100 Crore Vaccination LIVE Updates

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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