Was there a Medic update? Can Google measure E-A-T? Can Google classify a YMYL site.
Please visit Search Engine Land for the full article.
Search Engine Land: News & Info About SEO, PPC, SEM, Search Engines & Search Marketing https://searchengineland.com/google-patent-application-reveals-hints-to-e-a-t-and-categorizing-health-sites-329591