HomeNewscoronavirusSix people test COVID-19 positive from 'at risk' countries on first day of international travel guidelines

Six people test COVID-19 positive from 'at risk' countries on first day of international travel guidelines

The samples of all six passengers have been sent to INSACOG labs for Whole Genomic Sequencing.

December 01, 2021 / 21:24 IST
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Representative Image (Image: AP)
Representative Image (Image: AP)

On the first day of India implementing its international travel guidelines amid the new Variant of Concern (VOC) Omicron, six people have tested COVID positive from "at-risk" nations at airports.

A total of 11 international flights landed at various airports of the country except Lucknow, from midnight to 4 pm on December 1 , from "at risk" countries that carried 3,476 passengers. All these passengers were administered RT PCR Tests and among them, six tested positive, according to the government's press release.

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Their samples have now been sent to INSACOG labs for Whole Genomic Sequencing.

Also Read: Negative RT-PCR report must for domestic passengers arriving at Mumbai airport

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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