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Explainer: How the World Health Organization could fight future pandemics

A new pact is a priority for WHO chief Tedros Adhanom Ghebreyesus who called it a "generational commitment that we will not go back to the old cycle of panic and neglect" at the U.N. agency's annual assembly.

May 23, 2023 / 11:51 IST
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Explainer: How the World Health Organization could fight future pandemics
Explainer: How the World Health Organization could fight future pandemics

Negotiations on new rules for dealing with pandemics are underway at the World Health Organization (WHO), with a target date of May 2024 for a legally binding agreement to be adopted by the U.N. health agency's 194 member countries.

A new pact is a priority for WHO chief Tedros Adhanom Ghebreyesus who called it a "generational commitment that we will not go back to the old cycle of panic and neglect" at the U.N. agency's annual assembly. It seeks to shore up the world's defences against new pathogens following the COVID-19 pandemic that has killed nearly 7 million people.

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WHAT IS THE SO-CALLED PANDEMIC TREATY?

The WHO already has binding rules known as the International Health Regulations, which in 2005 set out countries' obligations where public health events have the potential to cross borders. These include advising the WHO immediately of a health emergency and measures on trade and travel.

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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