Coronavirus
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disease
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2019
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(COVID-19)
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is
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a
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contagious
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disease
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caused
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by
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severe
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acute
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respiratory
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syndrome
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coronavirus
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(SARS-CoV-2).
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The
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first
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case
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was
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identified
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in
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Wuhan,
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China,
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in
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December
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2019.
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It
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has
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since
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spread
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worldwide,
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leading
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to
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an
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ongoing
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pandemic.
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