Seroprevalence of anti-SARS-CoV-2 antibodies 6 months into the vaccination campaign in Geneva, Switzerland, 1 June to 7 July 2021 Stringhini, Silvia and Zaballa, María-Eugenia and Pullen, Nick and Perez-Saez, Javier and de Mestral, Carlos and Loizeau, Andrea Jutta and Lamour, Julien and Pennacchio, Francesco and Wisniak, Ania and Dumont, Roxane and Baysson, Hélène and Richard, Viviane and Lorthe, Elsa and Semaani, Claire and Balavoine, Jean-François and Pittet, Didier and Vuilleumier, Nicolas and Chappuis, François and Kherad, Omar and Azman, Andrew S. and Posfay-Barbe, Klara and Kaiser, Laurent and Guessous, Idris and on behalf of the Specchio-COVID19 study group, Eurosurveillance, 26, 2100830 (2021), https://doi.org/10.2807/1560-7917.ES.2021.26.43.2100830