[1] Unexpected detection of SARS-CoV-2 antibodies in the prepandemic period in Italy
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[2] Was SARS-CoV-2 Already in France in November 2019?
[3] SARS-CoV-2 circulating in Brazil back in November 2019 ******news-medical***/news/20200701/SARS-CoV-2-circulating-in-Brazil-back-in-November-2019.aspx?utm_source=chatgpt***
[4] A serological investigation in Southern Italy: was SARS-CoV-2 circulating in late 2019? ******tandfonline***/doi/full/10.1080/21645515.2022.2047582?utm_source=chatgpt***