HomeNewsWorldChina defends its retaliation against South Korea, Japan COVID curbs

China defends its retaliation against South Korea, Japan COVID curbs

China re-opened its borders on Sunday after three years of isolation under the world's strictest regime of COVID restrictions, which Beijing abruptly began dismantling in early December after historic protests.

January 11, 2023 / 10:26 IST
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Covid-19 Crisis
Covid-19 Crisis

Chinese state media defended on Wednesday the retaliatory measures against South Korea and Japan over their COVID-19 travel curbs as "reasonable", while Chinese tourists decried Seoul's "insulting" treatment on social media.

China re-opened its borders on Sunday after three years of isolation under the world's strictest regime of COVID restrictions, which Beijing abruptly began dismantling in early December after historic protests.

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With the virus spreading unchecked among China's 1.4 billion people after the policy U-turn, some foreign governments have raised concerns about the scale and impact of the outbreak, with the World Health Organization saying deaths are underreported.

In a first, China's health authorities - which have been reporting five or fewer deaths a day over the past month, numbers that are inconsistent with the long queues seen at funeral homes - did not report COVID fatalities data on Tuesday.

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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