HomeNewsWorldWHO chief says 2022 must be year 'we end the pandemic'

WHO chief says 2022 must be year 'we end the pandemic'

"If we are to end the pandemic in the coming year, we must end inequity," WHO director general Tedros Adhanom Ghebreyesus said.

December 20, 2021 / 22:57 IST
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WHO's director-general Tedros Adhanom Ghebreyesus (File image: AP)
WHO's director-general Tedros Adhanom Ghebreyesus (File image: AP)

The World Health Organization chief called Monday for the world to pull together and make the difficult decisions needed to end the Covid-19 pandemic within the next year.

"2022 must be the year we end the pandemic," WHO director general Tedros Adhanom Ghebreyesus told reporters in Geneva.

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As the end-of-year festivities approach, the UN health agency chief acknowledged that "all of us want to spend time with friends and family. All of us want to get back to normal".

But, he said, to get back to normal, we need to protect ourselves now as cases, fuelled by the fast-spreading Omicron variant, surge.

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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