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Coronavirus: Death toll in China rises to 1,110; confirmed cases at 44,200

The total number of confirmed cases of novel coronavirus across China has increased to around 44,200

February 12, 2020 / 07:31 IST
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The death toll in China’s novel coronavirus epidemic jumped to 1,110 on February 12. This came after the hard-hit Hubei province reported 94 new deaths.

Hubei's health commission also confirmed another 1,638 new cases had been detected in the central province, where the outbreak emerged in December 2019.

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The total number of confirmed cases of novel coronavirus across China has increased to around 44,200, based on figures previously released by the Chinese authorities.

The new virus is believed to have emerged in 2019 in a market that sells wild animals in Wuhan, Hubei — the city at the centre of the outbreak.

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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