In our system, there are several parts which are changed to streamline the administration.The notable ones are as follows: the yellow vaccine is more concentrated so that the vaccine has to be administered only once instead of three times. The purple body of the syringe is reusable and should be made of strong plastic. The blue marker lines mark out one dose of medicine. Obviously, we haven't done testing and don't know how much vaccine will be needed per person, but we hope that a doctor will be able to vaccinate five or six people without remeasuring vaccine. The red part at the top will cause vaccine to be pushed down through the orange needle. It is able to be removed and put back safely so that the vaccine can be poured rather then "sucked" through the needle. The needle, along with the thicker anchoring portion of the needle, can be removed quickly in between patients for sanitation, and is made out of stainless steel so that it can be easily washed and reused. It is also safe for a local vaccination site, making the vaccine more effective.