F
Fred Bloggs
Guest
Retrospective investigation of archived blood samples from national screening program reveals SARS-Cov-2 was circulating in Italy with significant prevalence in September 2019. This was well before China even became aware of their Wuhan problem.
https://www.scmp.com/news/china/science/article/3110088/covid-19-virus-hunters-pick-another-piece-trail-italy
https://www.scmp.com/news/china/science/article/3110088/covid-19-virus-hunters-pick-another-piece-trail-italy