HomeNewsWorldCOVID confusion in China as authorities row back curbs

COVID confusion in China as authorities row back curbs

Three years into the pandemic, China's zero-tolerance measures, from shutting its borders to stifling lockdowns, provide a stark contrast with the rest of the world, which has largely opened up in its efforts to live with the virus.

December 05, 2022 / 09:44 IST
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China's harsh measures to control coronavirus have drawn global scrutiny.  (Image credit: Reuters)
China's harsh measures to control coronavirus have drawn global scrutiny. (Image credit: Reuters)

A patchwork easing of the world's toughest COVID-19 curbs sowed confusion across China on Monday, spurring hopes for more clarity as officials shift tone on the dangers posed by the coronavirus in the wake of last month's unprecedented protests.

Three years into the pandemic, China's zero-tolerance measures, from shutting its borders to stifling lockdowns, provide a stark contrast with the rest of the world, which has largely opened up in its efforts to live with the virus.

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The strict approach has battered the world's second-largest economy, put mental strain on hundreds of millions and last month prompted the biggest show of public discontent in mainland China since President Xi Jinping took power in 2012.

Although the protests largely petered out amid a heavy police presence across major cities, in their wake numerous regional authorities have announced some relaxations of lockdowns, quarantine rules and testing requirements.

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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