“…(E. Wang et al, 2015, p. 6706) In 23 studies, parents described how they perceived that the risk of adverse side effects from vaccines to be higher than the risk of acquiring vaccine-preventable disease Blaisdell et al, 2016;Dubé et al, 2016;Enkel et al, 2018;Gullion et al, 2008;Harmsen et al, 2013;Hatoková et al, 2018;Koski & Holst, 2017;McCoy et al, 2019;P. McDonald et al, 2019;Meleo-Erwin et al, 2017;Painter et al, 2019;Peretti-Watel et al, 2019;Reich, 2014Reich, , 2018Senier, 2008;Sobo et al, 2016;Swaney & Burns, 2019;Vandenberg & Kulig, 2015;E. Wang et al, 2015;Ward et al, 2017Ward et al, , 2018.…”