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Delhi reports zero COVID-19 deaths for second successive day, 46 new cases

On March 2 this year, the national capital had reported zero deaths due to the virus. On that day, the number of single-day infections stood at 217 and the positivity rate was 0.33 percent.

August 27, 2021 / 09:07 PM IST
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Representative image

No fresh death due to COVID-19 was recorded in Delhi on Friday, the second consecutive day with no fatality count, while 46 fresh cases were reported with a positivity rate of 0.06 per cent, according to data shared by the city health department. This is the 17th time since the start of the second wave of the pandemic in the national capital that no deaths have been reported in a day.

On July 18, July 24, July 29, August 2, August 4, August 8, August 11, August 12, August 13, August 16, August 20, August 21, August 22, August 23 and August 24 and August 26 too, no death due to COVID-19 was recorded, according to official data.

On March 2 this year, the national capital had reported zero deaths due to the virus. On that day, the number of single-day infections stood at 217 and the positivity rate was 0.33 percent.

The second wave swept the city during April-May period.

On Friday, 46 fresh cases were recorded as the positivity rate stood at 0.06 per cent, while no death was reported due to COVID-19, according to the latest bulletin.

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COVID-19 Vaccine

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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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Also, 15 positive cases related to earlier weeks were added on the ICMR portal by the central, east and north-west districts, it said.

On Thursday, 45 fresh cases were recorded with a positivity rate of 0.06 per cent, according to official figures.

According to covid19India.org, a crowd-sourced initiative that collects data on COVID-19 and vaccination in India, Delhi had recorded 17 cases on April 15, 2020.

On Wednesday, the city had registered 35 cases and one death, while the positivity rate had stood at 0.05 per cent.

Follow our full coverage of the coronavirus pandemic here.
PTI
first published: Aug 27, 2021 09:06 pm
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