Doctors 'vastly outperform' symptom checker apps - Health News - NHS Choices

A US study ran a head-to-head comparison between doctors and a series of symptom checkers using what are known as clinical vignettes. Clinical vignettes have been used for many years to help hone trainee doctors' diagnostic skills. They are essentially diagnostic puzzles based on real-life case reports designed to test training and clinical knowledge. The researchers provided 45 clinical vignettes to more than 200 doctors. They found doctors were twice as likely to diagnose accurately first time compared with online symptom-checking applications.