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Covid-19 in India: Active cases reach 3395; Delhi reports three deaths

Citizens are advised to maintain hygiene, avoid large gatherings, and stay updated on vaccination and booster schedules.

May 31, 2025 / 15:30 IST
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Delhi reports first covid death

India is currently experiencing a concerning increase in Covid-19 cases, with active infections reaching 3,395 as of May 31, 2025. This represents a fivefold rise from just a week earlier, when the active case count was slightly above 1,000.

Health experts attribute this surge to the emergence of the Omicron sub-variants NB.1.8.1 and LF.7, which are under close observation. While the symptoms related to these variants remain largely mild, authorities are monitoring the situation closely to prevent any major outbreaks.

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Kerala is the most affected state, accounting for over 1336 active cases—more than 40 percent of the country's total. Maharashtra follows with approximately 467 active cases, while Delhi has reported around 375.

Notably, Delhi has confirmed its first Covid-related death in this wave: a 60-year-old woman with multiple comorbidities. Gujarat, Karnataka, Tamil Nadu, and West Bengal have also seen steady increases in infections, each reporting over 100 active cases.

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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