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Prevalence of SARS-CoV-2 specific neutralising antibodies in blood donors from the Lodi Red Zone in Lombardy, Italy, as at 06 April 2020

2020; European Centre for Disease Prevention and Control; Volume: 25; Issue: 24 Linguagem: Inglês

10.2807/1560-7917.es.2020.25.24.2001031

1560-7917

Elena Percivalle, Giuseppe Cambiè, Irene Cassaniti, Edoardo Vecchio Nepita, R. Maserati, Alessandro Ferrari, Raffaella Di Martino, Paola Isernia, Francesco Mojoli, Raffaele Bruno, Marcello Tirani, Danilo Cereda, Carlo Nicora, Massimo Lombardo, Fausto Baldanti,

SARS-CoV-2 detection and testing

We evaluated SARS-CoV-2 RNA and neutralising antibodies in blood donors (BD) residing in the Lodi Red Zone, Italy. Of 390 BDs recruited after 20 February 2020 − when the first COVID-19 case in Lombardy was identified, 91 (23%) aged 19–70 years were antibody positive. Viral RNA was detected in an additional 17 (4.3%) BDs, yielding ca 28% (108/390) with evidence of virus exposure. Five stored samples collected as early as 12 February were seropositive.