Covid-19 might have started to spread in Sept 2019 in the US: Chinese study, United States News & Top Stories – The Straits Times

BEIJING (XINHUA) – Chinese researchers have discovered by employing big data analysis that the Covid-19 pandemic in the United States might have started to spread around in September 2019, earlier than the officially announced date of its first confirmed case. According to a new article published on Wednesday (Sept 22) as a preprint in ChinaXiv, a series of previous studies showed that the US, Spain, France, Italy, Brazil and other countries had shown signs of being hit by the virus before its outbreak in China. ChinaXiv is an online publishing service operated by the National Science Library, Chinese Academy of…