HomeNewsIndiaRandom COVID-19 tests to resume at Delhi Metro stations, bus stops, markets: Report

Random COVID-19 tests to resume at Delhi Metro stations, bus stops, markets: Report

Random sampling of COVID-19 tests will resume at public places in the national capital such as Delhi Metro stations, bus stops, and markets.

April 17, 2022 / 11:03 IST
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Representative image

With active COVID-19 cases increasing to 1,262 in Delhi and positivity rate reaching 5.33 percent - the highest since January 31 - the authorities are planning to reinforce COVID-19 tests at public places, according to a Mint report.

Random sampling of COVID-19 tests will resume at public places in the national capital such as Delhi Metro stations, bus stops, and markets amid the recent rise in new coronavirus cases.

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"The gradual increase in the number of COVID-19 tests will again start from Monday and it will start showing from Tuesday’s bulletin. District administration will soon be formally directed to intensify the testing and tracking strategy," said an official, asking not to be named, as reported by Hindustan Times.

Also Read: Long Covid: Breathlessness, eye problem, muscle weakness, dementia most common symptoms

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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