The number of active COVID-19 cases in Delhi marginally rose to 27,524 on September 29 after falling for three days in a trot, from September 26-28, according to official data. In September, both the number of fresh and active cases have risen steadily by and large, with fall registered intermittently.
The national capital reported 48 COVID-19 fatalities on Tuesday, the highest in over 70 days, as the toll climbed to 5,320, while the caseload rose to over 2.76 lakh with 3,227 more people contracting the disease, authorities said. This is the highest number of deaths reported in a day since July 16, when the city recorded 58 fatalities. On September 26, Delhi had recorded 46 deaths, 42 the next day and 37 on September 28.
The number of actives cases from September 26 to 28 stood at 29,717, 29,228, and 27,123 respectively, according to official data. On September 25 the city had 30,867 active cases, less than the previous day when the count was 31,125. Active cases in September continuously rose in the first week, from 15,879 on September 1 to 20,909 on September 6, and then falling to 20,543, the next day.
Coronavirus cases had shown a surge since the beginning of this month with September 16 recording 4,473 cases, the highest single-day spike here till date. From September 9-19, fresh cases were recorded over 4,000 per day except on September 14 when the figure stood at 3229. However, since September 20, cases have remained below the 4,000-mark.
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.
Daily fatalities from September 15-24 were recorded over 30 on all days. Only on September 25, it stood at 24, jumping again to 46 the next day. The number of tests done per million, as on Tuesday was over 1.58 lakh while the total number of tests crossed the 30-lakh mark.
The Delhi health department bulletin said that 2,40,703 coronavirus patients have recovered, been discharged or migrated so far, till date. Meanwhile, in a post shared on his Facebook page, Delhi Health Minister Satyendar Jain said, over 77,000 COVID-19 patients have recovered in September, an average of 3,500 patients each day. "This is the highest recovery since the outbreak of the pandemic," the post read.Follow our full coverage of the coronavirus pandemic here.