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26 March, 2020 08:25:27 PM / LAST MODIFIED: 27 March, 2020 05:59:52 PM

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Coronavirus could become seasonal: Top US scientist

Independent Online/AFP
Coronavirus could become seasonal: Top US scientist

There is a strong chance the new coronavirus could return in seasonal cycles, a senior US scientist said Wednesday, underscoring the urgent need to find a vaccine and effective treatments.

Anthony Fauci, who leads research into infectious diseases at the National Institutes of Health, told a briefing the virus was beginning to take root in the southern hemisphere, where winter is on its way.

"What we're starting to see now... in southern Africa and in the southern hemisphere countries, is that we're having cases that are appearing as they go into their winter season," he said.

"And if, in fact, they have a substantial outbreak, it will be inevitable that we need to be prepared that we'll get a cycle around the second time.

"It totally emphasizes the need to do what we're doing in developing a vaccine, testing it quickly and trying to get it ready so that we'll have a vaccine available for that next cycle."

There are currently two vaccines that have entered human trials -- one in the US and one in China -- and they could be a year to a year-and-a-half away from deployment.

Treatments are also being investigated -- some new drugs and others that have been repurposed, including the antimalarials chloroquine and hydroxychloroquine.

"I know we'll be successful in putting this down now, but we really need to be prepared for another cycle," Fauci concluded.

Fauci's comments suggesting the virus does better in colder weather than it does in hot and humid conditions follows a recent Chinese research paper -- still preliminary and awaiting peer-review -- that reached the same conclusion.

The reasons are thought to include that respiratory droplets remain airborne for longer in colder weather, and that cold weather weakens immunity.

Another potential reason is that viruses degrade more quickly on hotter surfaces, possibly because a protective layer of fat that envelops them dries out quicker.

But reduced infection rate does not mean the virus gets eliminated -- Australia has had almost 2,500 confirmed cases and 8 deaths, for example.

The best ways to protect yourself and help prevent virus infection are to:

1. Avoid close contact with people who are unwell

2. Avoid touching your eyes, nose and mouth with unwashed hands

3. Use tissues to catch coughs and sneezes, then put them in the bin and wash your hands

4. Wash your hands often with soap and water

More about Coronavirus: 

1. Home quarantine guidelines for COVID-19

2. Build immunity to fight coronavirus 

3. 5 reasons to find hope amid coronavirus chaos

4. When will the coronavirus outbreak end? 

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Editor : M. Shamsur Rahman

Published by the Editor on behalf of Independent Publications Limited at Media Printers, 446/H, Tejgaon I/A, Dhaka-1215.
Editorial, News & Commercial Offices : Beximco Media Complex, 149-150 Tejgaon I/A, Dhaka-1208, Bangladesh. GPO Box No. 934, Dhaka-1000.

Editor : M. Shamsur Rahman
Published by the Editor on behalf of Independent Publications Limited at Media Printers, 446/H, Tejgaon I/A, Dhaka-1215.
Editorial, News & Commercial Offices : Beximco Media Complex, 149-150 Tejgaon I/A, Dhaka-1208, Bangladesh. GPO Box No. 934, Dhaka-1000.

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