India's COVID-19 tally of cases climbed to 93.51 lakh with 41,322 new infections being reported in a day, while 87,59,969 people have recovered so far pushing the national recovery rate to 93.68 percent, according to the Union health ministry data updated on Saturday.
The total coronavirus cases increased to 93,51,109 and the death toll climbed to 1,36,200 with the virus claiming 485 more lives, the data updated at 8 am showed.
After showing an upward trend for three days in a row, the active COVID-19 caseload decreased to4,54,940, remaining below 5 lakh for the 18th consecutive day. It comprises4.87percent of the total caseload, the data stated.
TheCOVID-19casefatality rate stands at 1.46 percent.
According to the ICMR, over13.82croresamples have been tested up to November 27 with11,57,605 samples being tested on Friday.
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.