India has recorded 2,51,209 COVID-19 cases in the past 24 hours, marking a decline of around 12 percent in daily cases compared with a day before. A total of 627 deaths due to the infectious disease were also registered in a day, the highest-153 from Kerala, while the number of confirmed coronavirus cases reached 4,06,22,709.
The country has also lost a total of 4,92,327 individuals to COVID-19 so far. On a positive note, the number of active cases which stood at 21,05,611 on January 28 however registered a decline of over one lakh as compared to the previous day.
But, the weekly COVID-19 test positivity rate, at 17.47 percent, continues to soar high in the country even though 3,47,443 recoveries were recorded in the last 24 hours.
In a press briefing on the current COVID-19 scenario in India, officials from the Union health ministry had shared on January 27 that 400 Districts in India had reported more than 10 percent weekly positivity in the week ending January 26.
Coronavirus Omicron LIVE Updates
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.
During the same period, 141 Districts showed a weekly positivity rate between 5 to 10 percent. Officials had also shared that as many as 9,672 Omicron samples were confirmed in January through whole genome sequencing, constituting 75 percent of the total sequenced samples of COVID-19, a significant rise from December when the highly transmissible variant was found in 1,292 samples.