3D-printed vaccine patch can offer painless, more effective immunization: study

A team of scientists have developed a painless way to deliver a vaccine shot without the use of a needle while offering a better immune response, they say. Researchers from Stanford University and the University of North Carolina at Chapel Hill say that their 3D-printed vaccine patch can offer an immune response that's much stronger than a vaccine delivered with a traditional jab. As described in their paper, published in the journal Proceedings of the National Academy of Sciences in August, the