Description:Are Days of Painful Needles Over? - as part of the news series by GeoBeats.
If the thought of getting a flu shot evokes painful memories, there's good news for you.
Research and development teams at the Massachusetts Institute of Technology have come up with a painless injection device that could replace hypodermic needles. The device delivers a blast of medicine through a miniscule area of the skin in under a millisecond at almost the speed of sound.(1:03)