The sars coronavirus is only officially appeared in December 2019, but it could well have been present several months before. According to a study conducted by researchers from the Harvard Medical School, published Monday, 9 June, he would even have begun to spread since August 2019 in China. To arrive at this conclusion, researchers relied on high-resolution satellite image of the parking lots of hospitals in Wuhan, the birthplace of the pandemic. They are also used in queries to search engines describing symptoms such as “diarrhoea” or ” cough “, the main symptoms of the Covid-19.
Results : the data were increased as early as the month of August 2019, well “before the expected start of the pandemic of SARS-CoV-2 by December 2019,” says the study, relayed by Reuters. The increase in research on the symptoms of the diarrhea is not, in fact, not been observed during seasons of flus, previous, or in the data from routine searches on the cough.
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A hypothesis which is swept by the chinese authorities
If the researchers are careful, however, to confirm that the increase in the traffic hospital of this period is directly related to the coronavirus, their results ” support other recent work showing that the virus appeared prior to its detection on the seafood market in Wuhan “. Support for ” the hypothesis that the virus appeared naturally in the south of China and circulated, potentially already by the time the epidemic is declared in Wuhan “, added the scientists.
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Tuesday, June 9, Hua Chunying, the spokeswoman of the chinese ministry of foreign Affairs, for its part, has swept away the hypothesis of the spread of the virus in August. “I think it’s ridiculous, unbelievably ridiculous, to come to that conclusion based on observations surface such that the volume of traffic “, she declared to Reuters at a press briefing daily.
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