For those times when a needle free vaccine won’t work you need a good old fashioned syringe. The problem is that syringes, when reused, spread disease and are major cause of death in the world. Hospitals reusing syringes on multiple patients, drug addicts sharing their needles, or simply syringes left in the garbage all spread disease.
Marc Koska hopes to change all that with the invention of his new syringe, take a look:
