Overview

• Officials are expected to advise avoiding routine acetaminophen use in early pregnancy unless treating fever, according to multiple reports.
• The White House plans to highlight leucovorin as a potential autism therapy under study, which is not standard of care.
• Research remains contested, with a 2025 Harvard–Mount Sinai review noting associations and a 2024 Swedish sibling-controlled study finding no causal relationship.
• Kenvue, maker of Tylenol, rejects any connection to autism and its CEO met HHS leaders to challenge the planned risk messaging.
• NIH is launching a separate data-science autism initiative funding 13 teams to investigate causes, evaluate treatments, and validate prior studies.