Coronavirus Daily Update: COVID-19 cases explained in charts

India reported over 14,000 COVID-19 new cases according to the official update, on January 22, 2021. Active cases further drop below 2 lakh cases with a fall of over 3000 cases in a day. Recoveries above 1 crore with a recovery rate of 96.8 percent. Over 10 lakh beneficiaries vaccinated till date.

Chaitanya Mallapur

January 22, 2021 / 12:16 PM IST

A healthcare worker receives a dose of Covishield, a COVID-19 vaccine manufactured by Serum Institute of India, at a government-run hospital at Baruipur on the outskirts of Kolkata. (Image: Reuters)

As many as 14,545 new cases of novel coronavirus were reported, with India’s total COVID-19 cases now above 1.06 crore, as per health ministry’s January 22, 2021 update. New cases below 20,000 mark for 15th day in a row.

India reported 163 new deaths and 18,002 new recoveries in the last 24 hours, the latest release show. Active cases drop to 1,88,688 with a fall of 3,620 cases on January 22.

As many as 10,43,534 beneficiaries have been vaccinated across India according to January 22, update.

Kerala reported the most (6,334) new cases in the last 24 hours, followed by Maharashtra (2,886), Karnataka (674), Tamil Nadu (596) and Chhattisgarh (560). These five states account for 76 percent of all the new cases reported in India.

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COVID-19 Vaccine

Frequently Asked Questions

How does a vaccine work?

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.

How many types of vaccines are there?

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.

What does it take to develop a vaccine of this kind?

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.

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