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US has now most confirmed coronavirus cases in world

With 81,321 cases of infection, the country of 330 million people has surpassed virus hotspots China and Italy in reaching the grim milestone.

March 27, 2020 / 18:57 IST
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Over 16,000 confirmed cases were reported in a single day in the US on Thursday as the total number of COVID-19 patients soared to 85,088, the highest for any country, according to data compiled by Worldometer.

The United States surpassed China (81,285) and Italy (80,589) in terms of number of people infected with the novel coronavirus.

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According to Worldometers, the website that records confirmed cases of infection and deaths globally, the US by Thursday night had 85,088 individuals infected with coronavirus, of which 16,877 were added just in a single day. A week ago, the number of confirmed cases were 8,000. It has dangerously surged 10 times in the span of a week.

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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