Satellite imagery that show a surge in the number of vehicles outside the main hospitals in Wuhan last winter they suggest that coronavirus may have been present and spread to the city months before the authorities recognized the disease. what emerges from a study from Harvard Medical School, Boston University of Publich Health and Boston Children’s Hospital, after the analysis of satellite images of the car parks of the main Wuhan hospitals between January 2018 and April 2020, and trends in Internet searches. The Guardian reports it. According to the study, which is still under review, parking images showed a sharp increase from August 2019 and a peak in December 2019. Between September and October, five of the six hospitals analyzed saw their highest volume. daily of cars. As for web searches, the use of the words diarrhea and cough increased significantly about 3 weeks before the peak in the confirmed cases of Covid-19 at the end of 2019.
The authors of the study said that although they could not confirm whether the increase in vehicle traffic was directly related to the new virus, the evidence supports other recent work showing that the emergency that occurred before the identification (of the coronavirus) in the Huanan fish marketin late December when Chinese officials reported a cluster at the market in central Wuhan. These results also confirm the hypothesis that the virus naturally emerged in southern China and was potentially already in circulation at the time of the Wuhan cluster, says the report. Something was happening in October, John S Brownstein of the Boston Children’s Hospital told ABC News. Clearly, some level of social distress was occurring well before the start of the new coronavirus pandemic was identified.
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