HomeNewsIndiaMaharashtra govt warns of COVID-19 spike citing new virus variants

Maharashtra govt warns of COVID-19 spike citing new virus variants

These variants have been detected for the first time in the country, it said. It also said that the new XBB variant of coronavirus has a growth advantage over BA.2.75 and has immune evasive property.

October 18, 2022 / 10:02 IST
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Source: AP
Source: AP

The Maharashtra health department has cautioned that the COVID-19 cases could rise especially during winters and the festive season, citing new variants like BA.2.3.20 and BQ.1 reported from the state.

These variants have been detected for the first time in the country, it said. It also said that the new XBB variant of coronavirus has a growth advantage over BA.2.75 and has immune evasive property.

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A health bulletin on Monday said the COVID-19 cases rose by 17.7 per cent in the state between October 10 and 16 as compared to between October 3 and 9. This rise has been noticed particularly in the densely populated districts of Thane, Raigad and Mumbai, it said.

"Some experts are predicting a rise in the coming winter season especially in the festive environment. In WGS (whole genome sequencing), the proportion of BA.2.75 has decreased to 76 per cent from 95 per cent," the bulletin said.

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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