Overview

• WHO said neither acetaminophen nor vaccines have been shown to cause autism and warned against altering established immunisation schedules.
• The European Medicines Agency and UK MHRA reaffirmed that paracetamol remains the recommended option for pain or fever in pregnancy, as Tylenol maker Kenvue denied any proven causal link.
• At the White House, President Donald Trump urged pregnant women to limit acetaminophen use and floated vaccine changes, including separating the MMR doses and delaying the hepatitis B shot to age 12.
• The FDA said published literature supports leucovorin for cerebral folate deficiency and signaled label-change steps, while experts stressed it is not an established autism treatment.
• Scientists describe the acetaminophen–autism research as observational and mixed, noting a large 2024 Swedish sibling-controlled study found no causal association, and clinicians cautioned that alarmist messages could push pregnant patients toward riskier alternatives.