Well-known anti-vaccine activist suspended indefinitely from Twitter: Larry Cook, the creator of one of the largest anti-vaccine groups on social media, was suspended indefinitely from Twitter. Cook's Facebook group "Stop Mandatory Vaccination | Vaccine Free Parenting" with over 200,000 followers was also deleted from Facebook shortly after Cook himself was removed from Facebook. "To recap, Today Facebook deleted my personal account, which shut down my Stop Mandatory Vaccination Page as well. Two hours later, Twitter suspended me," Cook wrote in a post on Twitter alternative Parler according to Newsweek.