Delhi logs 1,254 fresh COVID cases; 6 deaths

The new infections pushed the tally to 6,51,227, while over 6.35 lakh patients have recovered from the virus.

PTI

March 24, 2021 / 22:21 IST

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Delhi reported 1,254 coronavirus cases on Wednesday, highest in over three months, while six more people succumbed to the disease, the health department said. This is the highest number of cases since December 18 when 1,418 people tested positive for the virus, according to official data.

The city had recorded 1,101 cases on Tuesday. It was the first time since December 24 that the number of cases crossed the 1,000 mark.

The active cases rose to 4,890 on Wednesday from 4,411 from a day ago. The positivity remained rose to 1.52 per cent, the health bulletin said.

The positivity rate was 1.31 per cent on Tuesday,1.32 per cent on Monday and 1.03 per cent on Sunday.

The new infections pushed the tally to 6,51,227, while over 6.35 lakh patients have recovered from the virus.

COVID-19 Vaccine

Frequently Asked Questions

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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