The continuous surprises that SARS-CoV-2 presents to the scientific community – Correspondence about the Paper Fusco G, Cardillo L, Levante M, Brandi S, Picazio G, Napoletano M, Martucciello A, Fiorito F, De Carlo E, De Martinis C. First serological evidence of SARS-CoV-2 natural infection in small ruminants: brief report. Vet Res Commun. 2023 sep;47(3):1741