Castaldi, S. et al. 2022. The first major vaccination campaign against smallpox in Lombardy: the mass vaccination campaign against coronavirus…nothing new…only terminology. Acta Biomedica Atenei Parmensis. 93, 1 (Mar. 2022), e2022101. DOI:https://doi.org/10.23750/abm.v93i1.11910.