“…Another significant aspect is the distrust or doubts about vaccination against COVID-19 and its efficacy [ 20 , 21 , 24 , 27 , 34 , 38 , 44 , 49 , 51 , 52 , 53 ]. As easily expected, the attitude of refusal towards vaccinations or the adoption of poorly protective behaviours constitutes a further preponderant element predisposing to VH against COVID-19 [ 24 , 26 , 27 , 28 , 30 , 37 , 39 , 40 , 42 , 48 , 51 ]. Another predisposing element is the lack of awareness of contracting the infection [ 18 , 31 , 33 , 34 , 37 , 42 , 44 , 46 , 49 ].…”