特朗普签署了一项行政令，建议对儿童疫苗接种计划进行修订，其中包括将麻腮风三联疫苗分离为三个单病种疫苗[1]。在签署该令的过程中，特朗普和政府官员重复发表了多项关于疫苗与自闭症关系的虚假声称[1]。
特朗普声称美国要求儿童接受"72次注射"[1]，但实际上2025年政府儿童疫苗计划针对18种疾病，除去每年流感疫苗和新冠疫苗，总注射数约为36次，而新政策将把这一数字减至约23次[1]。他还表示麻腮风三联疫苗"一起接种可能相当致命，分开接种看起来根本不致命"[1]，但医学事实证明组合麻腮风疫苗安全有效[1]。对于注射剂量，特朗普声称"大量疫苗像装在大桶里被注入孩子体内"[1]，而实际上每种疫苗注射量少于0.5毫升，通常为0.1至0.3毫升[1]。
特朗普的政策顾问罗伯特·肯尼迪二世声称，1970年威斯康星州自闭症发病率为万分之0.8，现在是31分之1[1]。然而，这一上升主要源于诊断标准的改变而非真实患病率增加，多项研究已排除疫苗与自闭症之间的关联[1]。
美国医学协会主席威利·安德伍德医生表示，"改变经过验证的疫苗接种计划而无可信证据会削弱公众信心并危害儿童健康"[1]。公共卫生专家对这些建议表示关切，指出分散接种时间可能增加儿童在等待下次接种前患疫苗可预防疾病的风险[1]。与此同时，麻疹病例数已超过2024年全年记录，为30多年来最严重[1]。
President Trump signed an executive order recommending revisions to childhood vaccination guidance, including separating the measles-mumps-rubella vaccine into three individual vaccines [1]. During this process, Trump and administration officials repeated multiple false claims about vaccines and autism [1].
Trump claimed that "we're asking for 72 shots," but the 2025 government childhood vaccination schedule actually covers 18 diseases with approximately 36 total injections, excluding annual flu and COVID-19 vaccines—a figure that would drop to around 23 under the proposed changes [1]. Regarding the MMR vaccine, Trump stated it "could be pretty much lethal if you do it all at once, and if you spread it out, it looks like it's not lethal at all," despite medical evidence confirming the combined vaccine is safe and effective [1]. He also characterized vaccines as being "loaded up like they're in big barrels being shot into your kid," when in reality each vaccine injection contains less than 0.5 milliliters, typically between 0.1 and 0.3 milliliters [1].
Administration health officials similarly promoted discredited links between vaccines and autism. According to claims made, autism rates in Wisconsin shifted from approximately 0.008 percent in 1970 to 1 in 31 today; however, this increase reflects changes in diagnostic criteria and improved identification rather than a vaccine connection, as multiple studies have ruled out such a link [1]. American Medical Association President Willie Underwood Jr., M.D., responded by stating that "changing proven vaccination schedules without credible evidence will undermine public confidence and endanger children's health" [1]. The proposal comes as measles cases have already exceeded the total for all of 2024, marking the most severe outbreak in over three decades [1].