As Donald Trump uses the platform of the presidency to promote unproven ties between Tylenol, vaccines and autism without giving new evidence, Alex Hannaford looks at the rise of Robert F Kennedy Jr’s ‘Maha’ movement and why some of its wild claims rooted in conspiracy theories could be devastating

RFK Jr has pushed a discredited theory that routine vaccinations are responsible for the rise in the diagnosis

“THIS WAS NOT CAUSED BY TYLENOL” Kennedy’s anti-vaccine group retweeted.