https://phys.org/news/2019-03-facebook-vaccine-misinformation.html > US lawmakers have decried the higher incidences of preventable diseases in the wake of a movement against child vaccination, in large part due to rumors they can cause health or developmental issues. > Monika Bickert, Facebook's vice president for global policy management, said the social media network would reduce the distribution of false data and provide users with authoritative information about vaccinations.