Important: see disclaimer at the end of this description* What happens in a population if no one is vaccinated? What if we are all vaccinated? Vaczine can answer those questions without having to experience it firsthand, and in just a few minutes. What is Vaczine? Vaczine is a digital simulator of the use of vaccines in a population and is free to use. Where can I run it? Since the program is written in java, it can run on almost any platform, such as Windows, Linux, and MacOS. There is a