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US coronavirus outbreak may peak this week, as more hopeful signs emerge

Official statistics, which exclude deaths outside of hospitals, have understated the actual number of people who have succumbed to COVID-19, the respiratory disease caused by the new coronavirus, health experts said.

April 13, 2020 / 21:48 IST
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The coronavirus outbreak could reach its peak in the United States this week, a top US health official said on Monday as more signs of stabilization emerged, but political leaders said a reopening of the economy may hinge on more widespread testing.

The United States, with the world's third-largest population, has recorded more fatalities from COVID-19 than any other country, more than 22,000 as of Monday morning according to a Reuters tally.

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The number of deaths reported on Sunday was 1,513, the smallest increase since 1,309 died on April 6. The largest number of fatalities is still in and around New York City, the most populous US city with about 8.4 million people.

"We are nearing the peak right now," Robert Redfield, director of the Centers for Disease Control and Prevention (CDC), told NBC's "Today" show. "You'll know when you're at the peak when the next day is actually less than the day before."

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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