The daily rise in coronavirus infections was registered above 16,000 for the third consecutive day on Saturday, pushing India's case tally to 1,10,79,979, while the recoveries surged to 1,07,63,451, according to the latest Union Health Ministry data.
A total of 16,488 infections were reported in a day, while the death toll increased to 1,56,938 with 113 new fatalities, showed the data updated at 8 am on Saturday.
The active case count has further increased to 1,59,590, which comprises 1.44 percent of the total infections, the data stated.
The number of people who have recuperated from the disease surged to 1,07,63,451, which translates to a national COVID-19 recovery rate of 97.14 percent and the case fatality rate stands at 1.42 percent.
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 one crore on December 19.
Frequently Asked Questions
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.
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.
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.
(With PTI inputs)