The active COVID-19 case count on Monday stood at 27,123, down from 29,228 the previous day, according to the latest bulletin issued by the Delhi health department.
Delhi recorded 1,984 fresh COVID-19 cases on September 28, as the infection count mounted to over 2.73 lakh in the city, while the death toll rose to 5,272 with 37 new fatalities, according to a health department bulletin.
The relatively low count of fresh cases came out of the36,302 tests done the previous day.
The active COVID-19 case count on Monday stood at 27,123, down from 29,228 the previous day, according to the latest bulletin issued by the Delhi health department. The death toll from COVID-19 in Delhi stood at 5,235 on Sunday.
The Monday bulletin said the fresh cases pushed the COVID-19 tally to 2,73,098 in Delhi.
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.