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Beijing declares initial COVID victory as bar-linked surge eases

After testing millions of individuals and quarantining thousands in the previous week to prevent an outbreak prolonged by an unexpected wave of illnesses connected to a bar, Beijing declared an initial success in its current battle with COVID-19 on Thursday.

June 16, 2022 / 17:49 IST
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(Representative image: Reuters/Adnan Abidi)

The city of Beijing on Thursday declared an initial victory in its latest battle with COVID-19 after testing millions of people and quarantining thousands in the past week to stem an outbreak prolonged by a sudden wave of cases linked to a bar.

The flare-up at the popular Heaven Supermarket Bar known for its cheap liquor and rowdy nights emerged just days after the Chinese capital started to lift widespread curbs. Restrictions had been in place for around a month in Beijing to tackle a broader outbreak that began in late April.

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The surge since June 9 is very modest by global standards, with a total of 351 cases found so far, but reflects how challenging it is, with the high transmissibility of the Omicron variant, for China to make a success out of its strategy of stamping out each cluster of cases as soon as it materialises.

"After eight days of hard fighting and the concerted efforts of Beijing residents in the battle, the swift and decisive measures have shown their effect," Beijing city government spokesperson Xu Hejian said.

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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