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Over 144.45 crore COVID-19 vaccine doses administered in India so far: Govt

The daily vaccination tally is expected to increase with the compilation of final reports for the day by late night, the ministry said.

December 31, 2021 / 08:35 AM IST
According to the Union Health Ministry, 1.11 crore people have received two doses in India so far.  (Representational image)

According to the Union Health Ministry, 1.11 crore people have received two doses in India so far. (Representational image)

The cumulative number of COVID-19 vaccine doses administered in the country crossed 144.45 crore on Thursday, the Union Health Ministry said.

More than 59 lakh doses were administered in the day till 7 pm, it said.

The daily vaccination tally is expected to increase with the compilation of final reports for the day by late night, the ministry said.

The countrywide vaccination drive was rolled out on January 16 with healthcare workers getting inoculated in the first phase. The vaccination of frontline workers started from February 2.

The next phase of COVID-19 vaccination commenced from March 1 for people above 60 years of age and those aged 45 and above with specified co-morbid conditions.

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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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The country launched vaccination for all people aged more than 45 years from April 1.

The government then decided expand its vaccination drive to include everyone above 18 from May 1.

(With PTI inputs)
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first published: Dec 31, 2021 08:37 am
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