A recent report suggests that half of parents of young children have been exposed on social media to fake news about vaccination, including ominous advertising on Facebook suggesting their children may die from the supposed toxicity of vaccines. Medical misinformation is so widespread that the World Health Organization has recently declared vaccine resistance one of the top 10 threats to global health in 2019.

…Officials believe groups like these are a reason for the spread of measles: “These outbreaks are due to the anti-vaccine movement,” 

Measles outbreaks are spreading. Medical misinformation is too. – Vox

hmm