Let’s look at the facts. We can say that “a disease is practically gone” thanks to vaccination coverage. Diseases that have nearly disappeared can reemerge if adequate vaccination coverage is not maintained. The onset of some recent epidemics are a clear testimony of this.
Vaccines make the population stronger and keep it that way. If everyone is vaccinated, viruses and bacteria cannot circulate. Vaccinating or getting vaccinated is an act of love and responsibility towards yourself and others.