ear infections
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Parents may be able to spot ear infections with a paper cone and an app
Researchers are working on a smartphone app that could help diagnose ear infections. As NPR reports, the app uses the phone's microphone, its speaker and a small paper cone. In its current form, the app sends short, sound pulses through a funnel and into the ear canal. It then measures the echo of that sound, and an algorithm uses the reading to predict if there's fluid behind the eardrum, one of the common symptoms of infection.
