Google has made some changes to its search platform to include some details about health. When searching through various diseases and infections using the company's search engine, result pages will pull down related details from Knowledge Graph. For example, search for tonsillitis and you'll see information regarding the infection without having to check multiple websites.
What makes the information presented by Google easier to digest over online resources is the inclusion of quick facts about symptoms, treatments and more for common health conditions.
Google stated on the official blog post that the company worked with a team of doctors to curate and the information for accuracy. Note that while this information is handy to have, Google does not recommend using search engines (or the Internet) for diagnoses. Go see your doctor if you seek medical assistance.
This feature will roll out in the US over the next few days.