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COVID cases in Asia surpass 100 million

The region is reporting over 1 million new COVID-19 cases about every two days, according to a Reuters analysis. With more than half of the world's population, Asia contributes 21% of all reported COVID-19 cases.

March 30, 2022 / 12:06 PM IST
Representative image (Image: AP)

Representative image (Image: AP)

Coronavirus infections in Asia passed 100 million on Wednesday, according to a Reuters tally, as the region records a resurgence in cases, dominated by the BA.2 Omicron sub-variant.

The region is reporting over 1 million new COVID-19 cases about every two days, according to a Reuters analysis. With more than half of the world's population, Asia contributes 21% of all reported COVID-19 cases.

The highly contagious but less deadly BA.2 sub-variant of Omicron has pushed the figures to greater highs in recent weeks in countries such as South Korea, China and Vietnam. BA.2 now represents nearly 86% of all sequenced cases, according to the World Health Organization.

South Korea leads the world in the daily average number of new cases reported, accounting for one in every four infections reported globally each day, as per Reuters analysis.

While the number of cases has levelled off since earlier in March, the country is still reporting over 300 deaths on average each day, with authorities ordering crematoriums nationwide to operate longer.

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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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China is trying to tame its worst outbreak since the pandemic began. The rise in COVID cases in Shanghai, fuelled by the BA.2 substrain, has prompted the financial hub to go into lockdown. The city moved into a two-staged lockdown of its 26 million residents on Monday, restricting movement through bridges and highways to contain the spread.

China has reported over 45,000 new cases since the start of this year, a figure higher than it reported in all of 2021. Even though China has inoculated 90% of its population, not enough elderly people have received booster doses, making them susceptible to reinfections.

Though China is sticking to its plan for crushing the outbreak, experts overseas remain sceptical about the efficacy of lockdowns in the face of the highly infectious Omicron variant.

"It is clear from Australia and elsewhere in the world that lockdowns are simply not effective against Omicron so expect a big wave coming," said Adrian Esterman, an expert in biostatistics at the University of South Australia.

India alone accounts for 43 million COVID cases, more than the total in the next three worst-hit Asian countries of Japan, South Korea and Vietnam.

India has reported fewer than 2,000 cases per day for the past 11 days versus its peak this year in January of over 300,000 cases on average per day.

Earlier in March, Asia passed 1 million COVID-related deaths. There have now been 1,027,586 million COVID-related deaths across the continent.

Vaccines are considered less effective against the BA.2 subvariant compared to its predecessors. Studies have shown Omicron can reinfect people previously diagnosed with different coronavirus variants.



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Reuters
first published: Mar 30, 2022 12:06 pm
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