HomeNewsTrendsHealthCOVID-19: International passengers to get booster doses faster but immediate relief unlikely for others

COVID-19: International passengers to get booster doses faster but immediate relief unlikely for others

The government is set to allow those planning travel outside India to receive COVID-19 booster doses, as per the requirement of the country they are travelling to

May 13, 2022 / 15:40 IST
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A government decision to allow Indian citizens and students to avail COVID-19 booster doses at a gap required by the country they are travelling to is set to help lakhs of travelers outside the country and is being seen as a welcome move by private hospitals.

Yet government officials said that the mandated gap of 9 months between the second dose and third dose may not be reduced immediately for all adults despite poor uptake of the precautionary doses so far.

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Government data shows that only about 12 lakh booster doses have been administered in the 18-59 age group over a month since the shots were opened for all adults under 60. At about 1.6 crore, the uptake is slightly better for those above 60 years.

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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