Satellite images of packed Wuhan hospitals suggest coronavirus outbreak began earlier than thought

Coronavirus may have broken out in the Chinese city of Wuhan much earlier than previously thought, according to a new US study looking at satellite imagery and internet searches. The Harvard Medical School research found that the number of cars parked at major Wuhan hospitals at points last autumn was much higher than the preceding year. It also found that searches from the Wuhan region for information on “cough” and “diarrhea”, known Covid-19 symptoms, on the Chinese search engine Baidu spiked around the same time. It has led researchers to suggest that the outbreak began much earlier than December 31, the date the Chinese government notified the World Health Organisation of the outbreak. The findings add weight to US calls for Beijing to cooperate with investigators attempting to understand the origins of a virus which has now claimed more than 400,000 lives worldwide.

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