In rare cases, modern vaccines have negative side effects, and under normal law, people can sue and sympathetic juries can reward huge sums of money. This would make vaccines unprofitable, and without vaccines many many people would die from a variety of diseases. Instead, in the 1980s, we set up a parallel system for vaccines where people with negative side effects can get a payment, but not an exorbitant sum from a normal lawsuit. This system is underfunded and understaffed and could use reform to keep up with claims, but throwing the system out risks for-profit vaccine companies ending the production of vaccines, resulting in many deaths. So, the system is needed, unless the government chooses to manufacture vaccines themselves. People can still sue vaccine manufacturers for negligence, but that is hard to prove.