“Known as Sana, which means “healthy” in Spanish and Italian, the open-source software system relies on smart phones running Google’s Android operating system to connect health-care workers in rural regions with physicians in urban areas. Using the Sana application on their phones, the workers collect patient data, including pictures and video, and send them in a text message to an electronic -record database. A doctor then reviews the data and sends a preliminary diagnosis to the health-care worker by text.” —MIT News