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Wuhan virus versus Sars - which is more deadly?
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A man is seen wearing a face mask near the Forbidden City in Beijing on Jan 25, 2020.
PHOTO: AFP
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The speed at which the Wuhan virus has raced across China and turned up in a growing list of countries, including Singapore, has gripped the world's attention.
It has also forced the Chinese government to take the unusual step of banning travel out of a growing number of Chinese cities in a bid to contain the epidemic.