“…The COVID-19 vaccine is worrying for some parents who have not vaccinated their children, and this concern stems from three main sources: (1) the lack of severe symptoms of COVID-19 in children [28] , [29] , [30] ; (2) the adverse events after vaccination, such as fatigue, dizziness, injection pain and even myocarditis [31] , [32] , [33] , [34] , [35] , [36] ; (3) insufficient clinical data on the efficacy of each vaccine [37] . In fact, this hesitancy of parents is unnecessary, because more than 65% of the side effects caused by the COVID-19 vaccine in children is relieved or ceases within 1–3 days [38] , [39] , [40] , [41] . Furthermore, clinical data proves that vaccines authorized for children have significantly shown strong efficacy in preventing infection and reducing the risk of morbidity of COVID-19 in children [42] , [43] , [44] , [45] , [46] , [47] , [48] .…”