HomeNewsTrendsHealthFrom how it got its name to what are its symptoms: Here are all your COVID-19 questions answered

From how it got its name to what are its symptoms: Here are all your COVID-19 questions answered

While the most common symptoms of the disease are high fever, sometimes with chills, a dry cough and fatigue, one tell-tale sign of COVID-19 is the loss of a sense of smell.

October 05, 2020 / 15:00 IST
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Over the last two weeks, India has maintained a steady trend of recording less than 10 lakh active COVID-19 cases while the number of people who have recuperated from the disease surged to 55,86,703, pushing the recovery rate to 84.34 percent, Health Ministry's recent numbers show.

As a result, many people are now looking towards understanding more about the condition, how to understand the symptoms as well as the onset of COVID-19.

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Here's everything you need to know about the coronavirus:

How did the name come about?

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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