HomeNewsWorldA New COVID Dilemma: What to Do When Vaccine Supply Exceeds Demand?

A New COVID Dilemma: What to Do When Vaccine Supply Exceeds Demand?

About 112.6 million people, or 34% of the population, were fully vaccinated as of Saturday.

May 10, 2021 / 17:38 IST
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A COVID-19 vaccination event hosted by the Miami Heat at AmericanAirlines Arena, April 29, 2021. Several states, long desperate for as many doses as they could get, are now awash in unused doses of COVID-19 vaccines as demand dwindles and supply continues to ramp up. (PC-Saul Martinez/The New York Times)
A COVID-19 vaccination event hosted by the Miami Heat at AmericanAirlines Arena, April 29, 2021. Several states, long desperate for as many doses as they could get, are now awash in unused doses of COVID-19 vaccines as demand dwindles and supply continues to ramp up. (PC-Saul Martinez/The New York Times)

And now for a new and vexing quandary for states trying to vaccinate their residents against COVID-19: What to do when supply of the vaccine greatly outstrips demand?

Several states, long desperate for as many doses as they could get, are now awash in unused doses of COVID vaccines as demand dwindles and supply continues to ramp up. And many are having either to come up with new and creative ways to vaccinate the hard to reach and the hesitant or to start cutting back on supplies, even though 43% of Americans have not received any vaccinations.

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About 112.6 million people, or 34% of the population, were fully vaccinated as of Saturday.

Explained: Why patents on COVID-19 vaccines are so contentious

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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