Painless vaccination method developed

Are there any among you who are scared to death of needles, especially when it comes to those compulsory vaccines and booster shots? Fear not, as a new type of inhaler is being developed specifically to administer vaccines and other medications without the help of the nightmare-inducing needle. This new inhaler does not come with any moving parts or propellants and boasts a low manufacturing cost in high volumes, and does not require any prior training or skill to use among medical personnel. Hopefully this ease-of-use will not be abused by drug addicts but instead be used in a responsible and mature manner when it is finally released.