Lesson 26_Reading on Coronavirus/Covid-19

Researchers first isolated a coronavirus in 1973.

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A novel coronavirus is a new coronavirus that has not been previously identified.

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COVID-19 by a member of the coronavirus family that has been encountered before.

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Many of those initially infected visited the Huanan seafood wholesale market in China.

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Among humans, coronavirus infections most often occur during the summer months.

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The antibodies for one strain of coronavirus may be ineffective against another one.

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The Director-General noted that the risk of serious complications increases with age.

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Symptoms typically start appearing within 40 days of exposure to the virus.

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In very rare cases COVID-19 can lead to severe respiratory problems, kidney failure or death.

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A doctor can diagnose the virus responsible by taking a sample of respiratory fluids.

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