HomeNewsTrendsCurrent AffairsDelta variant found in 80% samples sent for genome sequencing by Delhi govt in last 3 months

Delta variant found in 80% samples sent for genome sequencing by Delhi govt in last 3 months

At a meeting of the Delhi Disaster Management Authority, which devises Covid management policies for the capital, the health department shared that the Delta variant (B.1.617.2) has been detected in 83.3 percent of the samples sent for genome sequencing in Delhi in July.

August 09, 2021 / 08:00 IST
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The Delta variant of coronavirus has been detected in at least 80 percent of the samples sent for genome sequencing by the Delhi government in the last three months, according to official data.

At a meeting of the Delhi Disaster Management Authority, which devises Covid management policies for the capital, the health department shared that the Delta variant (B.1.617.2) has been detected in 83.3 percent of the samples sent for genome sequencing in Delhi in July.

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In May and June, the variant was found in 81.7 percent and 88.6 percent of the samples, respectively.

In April, it was found in 53.9 percent of the samples.

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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