The World Health Organization (WHO) said there has been a rise in measles cases around the world, blamed partly on an "antivax
"movement linking vaccines to side effects such as autism.
NHS chief Simon Stevens called this week for a "zero tolerance" policy by social media platforms towards antivax
content, and health secretary Matt Hancock (who, as the former digital secretary, knows his way around this sphere) echoed him.
Nonetheless, conspiracy theories merit study because they can have immense power, as the antivax
movement in the aftermath of the Andrew Wakefield case demonstrated.