Facebook news ban sees anti-vaccine misinformation pages unaffected and posting in 'information vacuum' Posted ThuThursday 18 updated ThuThursday 18 Conspiracy theories and anti-vaccine propaganda are spreading while Facebook blocks trusted news sites. ( Share Print text only Cancel In the midst of an "information vacuum" caused by Facebook's news ban in Australia, fringe self-described news websites, some already known for spreading misinformation, are freely posting vaccine scare stories. Key points: There is confusion around what counts as "news" content Public health experts fear a spike in vaccine scare stories ahead of Monday's vaccine rollout "Omg you guys are the only news left for Australians … all have gone," read one comment on an Australian Facebook page with over 200,000 followers.