How Facebook Hobbled the U.S. Vaccination Campaign

Wall Street Journal: “For more than a month, Facebook researchers warned that comments on vaccine-related posts—often factual posts of the sort Facebook sought to promote—were filled with antivaccine rhetoric aimed at undermining their message… The comments ranged from personal objections all the way to debunked falsehoods and conspiracy theories.”

“The wave of negative comments worried global health institutions, including the World Health Organization and Unicef, the documents say… Even authoritative sources of vaccine information were becoming ‘cesspools of anti-vaccine comments.'”