Facebook is disclosing to third parties that its users have an "interest" in a medical condition although FB purports not to disclose users' medical conditions.

Facebook is disclosing to third parties that its users have an "interest" in a medical condition although FB purports not to disclose users' medical conditions. Per @refurb in the comments, when people have an "interest" in a medical condition, they almost always actually suffer from that condition. It's almost like the algorithms are in charge over there, unsupervised.