India’s COVID-19 case tally is above 3.42 crore with 16,156 new cases reported, as per the health ministry’s October 28 update. New cases are below 20,000 for the 20th day. As many as 733 new deaths were reported in the last 24 hours with 17,095 new recoveries in the same period, the latest release showed.
India has 1,60,989 active cases (lowest in 243 days), down by 1,672 cases in 24 hours, as per the October 28 update. Kerala and Maharashtra account for nearly 62 percent of active cases in the country. The recovery rate currently at 98.20 percent, highest since March 2020.
More than 104.04 crore vaccinations have been administered across India, according to the October 28 update, with 49,09,254 new vaccination doses administered on October 27.
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.
Of the total vaccinations administered to date, 70 percent are recipients of their first dose while 30 percent have received the second dose. Among states, Uttar Pradesh administered the most (cumulative) vaccine doses at 12.84 crore, followed by Maharashtra at 9.67 crore and West Bengal at 7.46 crore.