Twitter has signalled that it will begin removing posts containing vaccine “conspiracies,” including claims that they are purposely used to cause harm and “control populations,” its latest effort to suppress “misinformation.” Starting next week, the social media giant will excise all posts that “invoke a deliberate conspiracy” or “advance harmful, false or misleading narratives” about vaccines, the company said in a blog post on Wednesday, putting particular focus on inoculations against the coronavirus. “Using a combination of technology and human review, we will begin enforcing this updated policy on December 21, and expanding our actions during the following weeks,” it said, adding that the new rule would be enforced “in close consultation with local, national and global public health authorities around the world.”