https://www.camdenadvertiser.com.au/story/7038987/study-suggests-virus-in-us-last-december/?cs=12651
CDC researchers looked for COVID-19 antibodies in archived blood samples collected by the American Red Cross from unidentified blood donors in nine states between Dec. 13 and Jan. 17, 2019. According to a press statement from Susan Stramer, vice president of scientific affairs for the American Red Cross, the findings suggest that the virus may have emerged in the western states of the country as early as December 13. On the 30th in the eastern states.