This is great news for the readers that are afraid of needles.... Yes I'm talking about you, stop your crying!
A breakthrough vaccine-delivery patch that dissolves into the skin was developed by the researchers at the Georgia Institute of Technology and Emory University.
A single patch contains hundreds of microscopic needles — each only 650 microns long — made from a polymerized blend of vinyl pyrrolidone and freeze-dried vaccine. Pressed against the epidermis, the microneedles quickly dissolve in bodily fluids, leaving behind only a thin backing that washes away in water. Unlike traditional hypothermic needles, which deliver the vaccine into muscle, the patch penetrates the outer layers of the skin.Don't be fooled by the photo showing sharp colorful needles...650 microns is pretty small and the application of the patch is painless. This application is fool-proof which allows for self-administration of vaccines during a pandemic or large-scale, walk-through immunization programs in developing nations.