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HomeNewsIndiaCovid-19 Tracker Highlights: Delhi reports first case of COVID-19 sub-variant JN.1: Officials
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Covid-19 Tracker Highlights: Delhi reports first case of COVID-19 sub-variant JN.1: Officials

States asked to ensure effective compliance with operational guidelines for the revised surveillance strategy for Covid-19 shared by Centre.

December 27, 2023 / 22:56 IST
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With the two new addition of Covid cases, a total of five cases of the viral disease have been reported in Odisha so far.

Delhi reported first case of COVID-19 sub-variant JN.1, according to officials, reported news agency PTI.

Delhi reports the first case of JN.1, a Sub-Variant of Omicron. Out of the 3 samples sent for Genome Sequencing, one is JN.1 & two are Omicron, said Delhi’s Health Minister Saurabh Bhardwaj.

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In response to the unexpected spike in coronavirus infections throughout the nation, the All India Institute of Medical Sciences (AIIMS) in Delhi has released guidelines for Covid-19 suspected or positive cases that would be reported to hospitals.

India recorded 529 fresh COVID-19 cases in a single day, while the country's active infection count stood at 4,093, the health ministry said on December 27. Three new fatalities, two from Karnataka and one from Gujarat, were reported in a span of 24 hours, according to the ministry's data updated at 8 am.

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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