Researchers Close to Injection-free Vaccine

April 10, 2017 08:23 AM
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Getting a vaccine without the shot has always been one of the greatest hopes of medicine. For people in the developed world it means getting a vaccine can be as simple as taking an aspirin. For people in the developing world, or in isolated rural areas, it means they can get vaccines without a doctor or nurse. VOA's Kevin Enochs reports.