HomeNewsIndiaCOVID-19 vaccine tracker: Over 56 lakh doses administered in India on August 18

COVID-19 vaccine tracker: Over 56 lakh doses administered in India on August 18

On the 215th day of the vaccination drive on August 18, 56,36,336 beneficiaries received the jab, pushing India's total coverage to 56,64,88,433.

August 19, 2021 / 10:22 IST
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Over 56 lakh vaccine doses were administered in India on August 18, the Union Health Ministry's latest report suggested. With that, the cumulative number of COVID-19 vaccine doses administered in the country crossed 56.64 crore.

On the 215th day of the vaccination drive on August 18, 56,36,336 beneficiaries received the jab, pushing India's total coverage to 56,64,88,433.

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Here are key developments related to the COVID-19 vaccination process:

- A new study by the Indian Council of Medical Research (ICMR) on people infected with COVID-19 has found that the Delta variant of coronavirus can infect the vaccinated population. The study noted that the prevalence of B.1.617.2 (Delta variant) "was not different between the vaccinated and unvaccinated groups."

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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