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发帖数: 21 | 1 While some countries have seen a gradual rise in confirmed cases, others,
like Italy, have endured unnerving spikes weeks after their initial
confirmation.
Italy's first identified case was a 38-year-old man from a town southeast of
Milan who hadn't traveled to China.
Scientists originally believed Italy's patient zero was a colleague of his
who had just returned from a business trip to China, but this person tested
negative – and no other obvious candidates were identified.
http://bigthink.com/politics-current-affairs/patient-zero-coronavirus?rebelltitem=1#rebelltitem1 |
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