Unexpected detection of SARS-CoV-2 antibodies in the pre-pandemic period in Italy

his study shows an unexpected very early circulation of SARS-CoV-2 among asymptomatic individuals in Italy several months before the first patient was identified, and clarifies the onset and spread of the coronavirus disease 2019 (COVID-19) pandemic. Finding SARS-CoV-2 antibodies in asymptomatic people before the COVID-19 outbreak in Italy may reshape the history of pandemic.

https://pubmed.ncbi.nlm.nih.gov/33176598/