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WHO reports record one-day increase in global coronavirus cases, up over 307,000

The biggest increases were from India, the United States and Brazil, according to the agency's website. Deaths rose by 5,537 to a total of 917,417.

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The World Health Organization reported a record one-day increase in global coronavirus cases on Sunday, with the total rising by 307,930 in 24 hours.

The biggest increases were from India, the United States and Brazil, according to the agency's website. Deaths rose by 5,537 to a total of 917,417.

India reported 94,372 new cases, followed by the United States with 45,523 new infections and Brazil with 43,718.

Both the United States and India each reported over 1,000 new deaths and Brazil reported 874 lives lost in the past 24 hours.

COVID-19 Vaccine

Frequently Asked Questions

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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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The previous WHO record for new cases was 306,857 on Sept. 6. The agency reported a record 12,430 deaths on April 17.

India leads the world in new cases reported each day and set a global record last week with 97,570 cases reported in a single day, according to a Reuters tally.

In some parts of India, medical oxygen is becoming hard to find as total cases exceed 4.75 million. Only the United States has recorded more cases at 6.5 million.

COVID-19 infections are still rising in 58 countries, including surges in Argentina, Indonesia, Morocco, Spain and Ukraine, according to a Reuters analysis.

New cases are falling in the United States and are down about 44 percent from a peak of more than 77,000 new cases reported on July 16. Cases in Brazil are also trending downward.

Follow our full coverage of the coronavirus pandemic here.