Coronavirus Daily Update: COVID-19 cases explained in charts

India reported over 16,000 COVID-19 new cases on February 25. Active cases rise above 1.51 lakh mark. Over 1.26 crore beneficiaries vaccinated till date.

Chaitanya Mallapur

February 25, 2021 / 11:35 AM IST

The Centre on February 20 said five states - Kerala, Maharashtra, Punjab, Chhattisgarh and Madhya Pradesh - are experiencing an upsurge in daily cases.

As many as 16,738 new cases of novel coronavirus were reported, with India’s total COVID-19 cases above 1.10 crore, as per health ministry’s February 25, 2021 update. New cases reported up 22 percent over the previous day.

India reported 138 new deaths and 11,799 new recoveries in the last 24 hours, the latest release show. As many as 1,26,71,163 beneficiaries have been vaccinated across India according to February 25, update.

Active cases rose to 1,51,708 with an increase of 4,801 cases on February 25. Maharashtra now reports the most (60,559 or 40 percent) active cases in the country, followed by Kerala (53,153) and Karnataka (6,096).

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Maharashtra reported the most (8,807 or 53 percent) new cases (highest in 129 days) in the last 24 hours, followed by Kerala (4,106), Punjab (558), Tamil Nadu (463) and Gujarat (380). These five states account for 86 percent of all the new cases reported in India.

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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