Google is adding its own symptom-related direct answers on mobile in the US. The info is sourced from a team of expert doctors from Harvard Medical School and the Mayo Clinic. Rankbrain is noted as a \u201csignal\u201d, not just a ranking factor, and Google showed a preview of a potential update to local pack where the first listing would be an ad.\n\nAdvertising Inquiries: https://redcircle.com/brands\n\nPrivacy & Opt-Out: https://redcircle.com/privacy