HomeNewsTrendsHealthReduce time gap for COVID vaccine booster dose to six months: Serum Institute to govt

Reduce time gap for COVID vaccine booster dose to six months: Serum Institute to govt

New Delhi, Apr 12 Vaccine major Serum Institute of India (SII) has appealed to the government to reduce the gap between the second and booster dose..

April 12, 2022 / 19:32 IST
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Vaccine major Serum Institute of India (SII) has appealed to the government to reduce the gap between the second and booster dose to six months from nine months at present to safeguard people against emerging COVID variants, according to its CEO Adar Poonawalla.

Recalling that they could not meet the commitment of exporting vaccines in the first quarter of 2021 due to "so much noise from public and the opposition", Poonawalla on Tuesday also pitched for a global pact for vaccine utilization.

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He noted that India and SII faced severe reputation damage when export of COVID vaccine was banned for nearly two months during the second COVID wave.

"The uptake (for precaution dose) right now is a bit slow as we have a rule that you have to wait for nine months between dose two and dose three. We have appealed to the government and the experts, who are having discussions regarding the matter, to reduce this period to six months," he said during an AIMA event here.

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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