The CDC study is the latest in a string of global papers that smash through claims that the virus didn't emerge until December:

September 3, 2019 – Veneto, Italy: A study carried out in Italy, by the National Cancer Institute in Milan, finds coronavirus antibodies in 111 people out of 959 blood samples taken before March 2020. The first sample that tested positive was dated September 3 and collected in the Veneto region of the country. Italy announced its first official case on February 20.
September 4 and 5, 2019 – Emilia Romagna and Liguria, Italy: The National Cancer Institute study finds antibodies in blood samples taken from the two regions, which are to the south-west of Veneto.
September 9, 2019 – Lombardy, Italy: The first two antibody-positive samples from Lombardy, the Alpine region that contains Milan and was one of the worst hit places in the world during the first wave, date back to September 9. By the time all of September's samples had been analysed, 13 out of 23 that were antibody positive had been taken in Lombardy.
September 11, 2019 – Lazio, Italy: The first antibody-positive specimen found from the Lazio region was dated September 11.
November 2019 – Brazil: Analysis of past human sewage samples from the southern Brazilian region of Santa Catalina found traces of the SARS-Cov-2 coronavirus as early as November 27. In the city of Florianopolis, samples from between October 30 and March were analysed, will all samples from November 27 onwards testing positive. Brazil announced its first official case on February 26.
November 2019 – China: Leaked government documents show cases of coronavirus were being recorded in Wuhan as early as November 17, the South China Morning Post reported in March. China announced its first official cases on December 31.
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