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EXPLAINER: What are Coronaviruses and Why are They Dangerous?

health and fitness | News18 | February 5, 2020, 3:14 pm
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 What you should know about the Coronavirus and its family of viruses that continue to haunt the world... (Image: Network18 Creative)
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What you should know about the Coronavirus and its family of viruses that continue to haunt the world... (Image: Network18 Creative)

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 Coronaviruses get their name from their shape. They are surrounded by a halo of spiky proteins that makes them look like a crown or the corona of the sun. (Image: Network18 Creative)
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Coronaviruses get their name from their shape. They are surrounded by a halo of spiky proteins that makes them look like a crown or the corona of the sun. (Image: Network18 Creative)

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 The original source of coronavirus diseases isn't people. These viruses are zoonotic. That means people originally catch the virus from some animal.  (Image: Network18 Creative)
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The original source of coronavirus diseases isn't people. These viruses are zoonotic. That means people originally catch the virus from some animal.  (Image: Network18 Creative)

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 SARS and MERS were passed onto humans by bats. (Image: Network18 Creative)
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SARS and MERS were passed onto humans by bats. (Image: Network18 Creative)

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 Before SARS, MERS and 2019-nCoV coronaviruses were believed to just cause colds. In the last two decades, we have seen them jumping species, causing serious disease in humans.  (Image: Network18 Creative)
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Before SARS, MERS and 2019-nCoV coronaviruses were believed to just cause colds. In the last two decades, we have seen them jumping species, causing serious disease in humans.  (Image: Network18 Creative)

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 Prevention is necessary because, currently, no cure exists for coronaviruses. All doctors can do is treat their symptoms. (Image: Network18 Creative)
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Prevention is necessary because, currently, no cure exists for coronaviruses. All doctors can do is treat their symptoms. (Image: Network18 Creative)

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 Viruses are non-living but they multiply inside living cells. They are dangerous because they hind inside cells making it difficult for antibodies to reach them. (Image: Network18 Creative)
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Viruses are non-living but they multiply inside living cells. They are dangerous because they hind inside cells making it difficult for antibodies to reach them. (Image: Network18 Creative)

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