HomeNewsTrendsHealthCOVID-19: Serum Institute yet to receive Novavax vaccine raw materials, launch likely to be delayed

COVID-19: Serum Institute yet to receive Novavax vaccine raw materials, launch likely to be delayed

Novavax's COVID-19 vaccine has demonstrated 93 percent effectiveness against novel coronavirus' variants of concern and variants of interest.

June 17, 2021 / 08:33 IST
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The protein-based vaccine, called NVX-CoV2373, demonstrated 100 percent protection against moderate and severe forms of viral disease, Novavax said. | Representative image
The protein-based vaccine, called NVX-CoV2373, demonstrated 100 percent protection against moderate and severe forms of viral disease, Novavax said. | Representative image

The launch of the Novavax COVID-19 vaccine is likely to be delayed further as the Serum Institute of India (SII) is yet to receive raw materials from the US despite the end on the export ban.

SII is yet to receive raw materials from the US needed to produce the Novavax vaccine, Mint reported citing an official aware of the development.

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The launch of the Novavax COVID-19 vaccine, to be produced by SII under the brand name Covovax, is likely to not take place before September as planned earlier, the official told the publication.

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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