Tedros Adhanom GhebreyesusDonald TrumpWorld Health Organization

WHO chief Tedros says Trump's vaccine push ignores 'decades of evidence'; warns splitting MMR doses leaves children unprotected

WHO chief Tedros Adhanom Ghebreyesus criticized President Trump's vaccine policy overhaul, stating it disregards 'decades of evidence.' He warned that splitting the MMR vaccine into separate doses could leave children unprotected, emphasizing that vaccination decisions should be based on science, not politics.

Al Jazeera Al Jazeera12 August 2026 · 15:57 UTC
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WHO Director-General Tedros Adhanom Ghebreyesus has strongly criticized President Donald Trump for his recent push to alter US childhood vaccination policies, which he claims ignores 'decades of evidence' supporting the safety and efficacy of vaccines.

Tedros's warning follows Trump's signing of an order that calls for a reassessment of school vaccine mandates and advocates for splitting the measles, mumps, and rubella (MMR) vaccine into three separate doses.

In a post on X, Tedros stated, 'Vaccination policy should be guided by rigorous, independent and transparent review of the best available science, not by political influence.' He emphasized that the scientific consensus is 'unequivocal'—vaccines, including the MMR, are safe and do not cause autism.

Furthermore, he cautioned that 'delaying vaccines or separating doses unnecessarily does not make vaccination safer and can leave children unprotected.' This statement underscores the potential risks associated with altering established vaccination schedules.

Since joining the Trump administration, Robert F. Kennedy Jr. has initiated a comprehensive review of longstanding vaccines, revised the childhood immunization schedule, and reduced funding for new vaccine development, raising concerns among public health experts about the implications for child health and safety.

Key Insight
“Tedros wrote on X that vaccination policy should be guided by rigorous, independent science, not political influence. He also warned that delaying vaccines or separating doses unnecessarily does not make vaccination safer and can leave children unprotected.”
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“The World Health Organization (WHO) chief has accused United States President Donald Trump of ignoring “decades of evidence” with his push to overhaul US childhood vaccination policy.”
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