Vaccination & epidemic

The Y. Pestis vaccine, by the way, is still experimental and not in common use. I looked it up, because I like looking things up. Nonetheless, plague is not a widespread or common infection, because it has been controlled through hygiene and is easily treatable with antibiotics.

My point is, the fact that many diseases have been controlled through means other than vaccination does not invalidate or minimize the importance of controlling other diseases through vaccination. It doesn't even make any logical sense to argue that it does.