1. Understanding variants of SARS-CoV-2;Burki;Lancet,2021
2. Antibody tests for identification of current and past infection with SARS-CoV-2;Deeks;Cochrane Database of Syst Rev,2020
3. SARS-CoV-2 variants and ending the COVID-19 pandemic;Fontanet;Lancet,2021
4. Italian National Institute of Statistics (Istat), Primi risultati dell'indagine di sieroprevalenza sul SARS-CoV-2. https://www.istat.it/it/files//2020/08/ReportPrimiRisultatiIndagineSiero.pdf 2020 (accessed 3 August 2020).
5. Children and Adolescents With SARS-CoV-2 Infection;Maltezou;Pediatr Infect Dis J,2020