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Dr KK Aggarwal, former IMA president, passes away due to COVID-19

Dr. KK Aggarwal was a cardiologist and the head of the Heart Care Foundation of India. He was awarded the Padma Shri in 2010.

May 18, 2021 / 10:01 AM IST
Dr KK Aggarwal (Video screenshot courtesy: YouTube/Dr KK Aggarwal)

Dr KK Aggarwal (Video screenshot courtesy: YouTube/Dr KK Aggarwal)

Former national president of the Indian Medical Association (IMA) Dr. KK Aggarwal passed away on May 17 at New Delhi’s All India Institute of Medical Sciences (AIIMS) after fighting a long battle against COVID-19. He was 62 years old.

Aggarwal, a Padma Shri awardee, had been admitted to AIIMS after he tested positive for COVID-19 and was on ventilator support since last week.

A statement posted on Aggarwal’s Twitter account said that he succumbed to COVID-19 at 11.30 pm on May 17.

“Even during the pandemic, he made constant efforts to educate the masses and was able to reach out to over 100 million people through numerous videos and educational programs and saved countless lives,” the statement added.

Aggarwal was a cardiologist and the head of the Heart Care Foundation of India. He was awarded the Padma Shri in 2010.

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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.

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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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Since the pandemic started in early 2020, he had been regularly posting videos on social media to create awareness about COVID-19.
Moneycontrol News
first published: May 18, 2021 10:01 am

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