The organizations said the order circumvents the expertise and review systems traditionally used in the United States to assess vaccine safety, effectiveness, and appropriate administration schedules. The organizations warned that the executive order could increase vaccine hesitancy by suggesting that long-established recommendations are unsupported or improperly developed. SHEA represents physicians and other healthcare professionals working in healthcare epidemiology, infection prevention, and antimicrobial stewardship. Together, the organizations called for vaccine policy to remain grounded in transparent review, high-quality evidence, and careful consideration of disease risk. Subject of Research: Vaccine policy, childhood immunization recommendations, vaccine safety, and the 2026 measles resurgenceArticle Title: Infection-Control Groups Warn Vaccine Executive Order Could Undermine Evidence-Based Recommendations Amid Measles ResurgenceNews Publication Date: 2026Keywords: vaccines, childhood immunization, measles, vaccine safety, public health, infection prevention, epidemiology, herd immunity, vaccine hesitancy, APIC, SHEA