HomeNewsIndiaCOVID-19 Omicron variant: RT-PCR mandatory for international travellers arriving in Delhi

COVID-19 Omicron variant: RT-PCR mandatory for international travellers arriving in Delhi

Health Minister Satyendar Jain’s statement came soon after six people who flew into Delhi from abroad were admitted to the Lok Nayak Hospital and four of them tested positive for COVID-19

December 02, 2021 / 13:27 IST
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Delhi airport file image: Reuters
Delhi airport file image: Reuters

International travellers arriving in Delhi will mandatorily have to undergo RT-PCR test at the airport, state Health Minister Satyendar Jain said on December 2.

“RT-PCR of every traveller coming from abroad is mandatory at the airport, in view of Omicron. Four COVID positive travellers have been admitted to LNJP Hospital and four suspected are being examined. Their samples have been sent for genome sequencing,” Jain said.

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Earlier on December 1, six people who flew into Delhi from 'at-risk' countries, including the United Kingdom and the Netherlands, have been admitted to the Lok Nayak Hospital after four of them tested positive for COVID-19 and two showed symptoms, officials said.

Samples of these six people have been sent to the National Centre for Disease Control (NCDC) for genome sequencing to ascertain if they have the new variant, Omicron. The six are set up in a dedicated for isolating and treating such patients, the officials added.

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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