The active cases have reduced to 37,04,099 comprising 15.87 per cent of the total infections, while the national COVID-19 recovery rate has improved to 83.04 per cent, the data updated at 8 am showed.

India saw a record 4,205 COVID-19 fatalities in a day taking the death toll to 2,54,197, while 3,48,421 new coronavirus infections were reported, according to the Union Health Ministry data updated on Wednesday.

The total tally of COVID-19 cases in country now stands at 2,33,40,938.

The active cases have reduced to 37,04,099 comprising 15.87 per cent of the total infections, while the national COVID-19 recovery rate has improved to 83.04 per cent, the data updated at 8 am showed.

The number of people who have recuperated from the disease surged to 1,93,82,642 while the case fatality rate was recorded at 1.09 per cent, the data stated.

India's COVID-19 tally had crossed the 20-lakh mark on August 7, 30 lakh on August 23, 40 lakh on September 5 and 50 lakh on September 16.It went past 60 lakh on September 28, 70 lakh on October 11, crossed 80 lakh on October 29, 90 lakh on November 20 and surpassed the one-crore mark on December 19.India crossed the grim milestone of 2 crore on May 4.

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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According to the ICMR, 30,75,83,991 samples have been tested up to May 11 with 19,83,804 samples being tested on Tuesday.

Coronavirus update: Record 4,205 fatalities in single day in country, 3.48 lakh new cases

The active cases have reduced to 37,04,099 comprising 15.87 per cent of the total infections, while the national COVID-19 recovery rate has improved to 83.04 per cent, the data updated at 8 am showed.

The active cases have reduced to 37,04,099 comprising 15.87 per cent of the total infections, while the national COVID-19 recovery rate has improved to 83.04 per cent, the data updated at 8 am showed.