A 3D-printed microneedle vaccine patch has been developed by scientists. Doses are applied to the skin - offering a pain-free alternative.
They can be stored for months at room temperature. It also opens the door to industrial sized shipments to developing countries.
Co-author Dr Ana Jaklenec, of Massachusetts Institute of Technology (MIT) in the US, said: "We could someday have on-demand vaccine production. If, for example, there was an Ebola outbreak in a particular region, one could ship a few of these printers there and vaccinate the people in that location."
