COVID-19 Update: Positivity rate falls below 3% in Delhi; 1,604 new cases

The number of active cases in Delhi stands at 9,979, of which 7,267 are under home isolation.

PTI

February 06, 2022 / 08:22 IST

With February 5 cases, Delhi's COVID-19 case count increased to 18,42523 and the death toll climbed to 25,969, the latest health bulletin stated. (Representative image: Reuters)

Delhi reported 1,604 COVID-19 cases and 17 fatalities on February 5, while the positivity rate declined to 2.87 percent, according to data shared by the health department here. On February 4, the national capital had reported 2,272 fresh COVID-19 cases and 20 deaths, while the positivity rate was at 3.85 percent.

With February 5 cases, the national capital's case count increased to 18,42523 and the death toll climbed to 25,969, the latest health bulletin stated.

The number of COVID-19 tests conducted on February 4 was 55,824, it said.

Delhi had on February 3 reported 2,668 cases with a positivity rate of 4.3 percent, and 13 deaths.

The number of daily cases in Delhi has been on the decline after touching the record high of 28,867 on January 13.

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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