HomeNewscoronavirusShanghai tightens lockdown to hit zero-COVID goal by late May: Report

Shanghai tightens lockdown to hit zero-COVID goal by late May: Report

Multiple residents said they were being required to move to such facilities, despite testing negative, after cases were found in their buildings, stoking frustrations.

May 08, 2022 / 15:44 IST
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China's commercial capital of Shanghai was dealt a blow on May 2 as authorities reported 58 new COVID-19 cases outside areas under strict lockdown, while Beijing pressed on with testing millions of people on a May Day holiday few were celebrating. (Image: Reuters)
China's commercial capital of Shanghai was dealt a blow on May 2 as authorities reported 58 new COVID-19 cases outside areas under strict lockdown, while Beijing pressed on with testing millions of people on a May Day holiday few were celebrating. (Image: Reuters)

Shanghai is tightening its already strict COVID-19 lockdown in a fresh push to eliminate infections outside quarantined areas of China's biggest city by late this month, people familiar with the matter said.

Curbs will likely vary across the city's 16 districts as some have already hit the target, but the people said movement curbs will generally remain until the end of May due to fears of a rebound, despite recently falling case numbers in the country's worst coronavirus outbreak.

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Accounts from residents in several districts as well as social media posts showed the government of the city of 25 million accelerating and expanding an effort to transfer the close contacts of positive cases to central quarantines centres.

Multiple residents said they were being required to move to such facilities, despite testing negative, after cases were found in their buildings, stoking frustrations.

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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