HomeNewsIndiaConsider booster dose for those above 40: INSACOG

Consider booster dose for those above 40: INSACOG

The recommendation was made in the weekly bulletin of the Indian SARS-CoV-2 Genomics Sequencing Consortium (INSACOG), a network of national testing labs set up by the government to monitor genomic variations of COVID-19.

December 03, 2021 / 12:22 IST
Representational image (Reuters)

Top Indian genome scientists have recommended a booster dose of COVID-19 vaccines for those above 40 years with preference to high-risk and high-exposure population.

The recommendation was made in the weekly bulletin of the Indian SARS-CoV-2 Genomics Sequencing Consortium (INSACOG), a network of national testing labs set up by the government to monitor genomic variations of COVID-19.

"Vaccination of all remaining unvaccinated at-risk people and consideration of a booster dose for those 40 years of age and over, first targeting the most high-risk / high-exposure may be considered," the INSACOG bulletin said.

The recommendation came amid demands for a booster dose of covid vaccines by lawmakers during a discussion in the Lok Sabha on the pandemic situation in the country.

Thr INSACOG said genomic surveillance will be critical for early detection of the presence of this variant, to enable necessary public health measures. It also recommended monitoring travel to and from the known affected areas, and contact tracing of COVID-19 cases with an epidemiological link to the affected areas has been implemented along with increased testing.

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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"Vaccination of all remaining unvaccinated at-risk people and consideration ofa booster dose for those 40 years of age and over, first targeting the most high-risk / high-exposure may be considered, since low levels of neutralising antibodies from current vaccines are unlikely to be sufficient to neutralise Omicron, although risk of severe disease is still likely to be reduced," it said.

PTI
first published: Dec 3, 2021 12:22 pm

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