HomeNewsTrendsHealthWHO says COVID-19 is still a global health emergency

WHO says COVID-19 is still a global health emergency

The WHO's emergency committee first made the declaration for COVID-19 on Jan 30, 2020. Such a determination can help accelerate research, funding and international public health measures to contain a disease.

October 19, 2022 / 20:50 IST
Story continues below Advertisement
The expanding web of measures have already ensnared some. Peter Lee, a long-time British expatriate, was out at lunch with his wife and seven-year-old son last week when he was notified his apartment block was to be locked down. Lee and his son then checked into a hotel, which was soon also locked down, due to a prior visit by a virus carrier. Lee's wife, who was planning to join them, had no choice but returned home to be locked in. (Source: Reuters)
The expanding web of measures have already ensnared some. Peter Lee, a long-time British expatriate, was out at lunch with his wife and seven-year-old son last week when he was notified his apartment block was to be locked down. Lee and his son then checked into a hotel, which was soon also locked down, due to a prior visit by a virus carrier. Lee's wife, who was planning to join them, had no choice but returned home to be locked in. (Source: Reuters)

The World Health Organization said on Wednesday that COVID-19 remains a global emergency, nearly three years after it was first declared as one.

The WHO's emergency committee first made the declaration for COVID-19 on Jan 30, 2020. Such a determination can help accelerate research, funding and international public health measures to contain a disease.

Story continues below Advertisement

The UN-agency has said in recent months that while cases are falling in parts of the world, countries still need to maintain their vigilance and push to get their most vulnerable populations vaccinated.

"Although the public perception is that the pandemic is over in some parts of the world, it remains a public health event that continues to adversely and strongly affect the health of the world's population," the WHO's committee said.

COVID-19 Vaccine
Frequently Asked Questions

View more

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.
View more
+ Show