Official Google Blog: A remedy for your health-related questions: health info in the Knowledge Graph

From a snapshot of one of many Google Knowledge Graph-enhanced domains

"[...] one in 20 Google searches are for health-related information. And you should find the health information you need more quickly and easily.

So starting in the next few days, when you ask Google about common health conditions, you’ll start getting relevant medical facts right up front from the Knowledge Graph. We’ll show you typical symptoms and treatments, as well as details on how common the condition is—whether it’s critical, if it’s contagious, what ages it affects, and more. For some conditions you’ll also see high-quality illustrations from licensed medical illustrators. Once you get this basic info from Google, you should find it easier to do more research on other sites around the web, or know what questions to ask your doctor."

Official Google Blog: A remedy for your health-related questions: health info in the Knowledge Graph