Vaccination & epidemic

Originally Posted by jinx

You're wrong again Tiki - Diptheria is also caused by bacteria, and there is a vaccine for it.

OK, you're right. I was mistaken about being unable to vaccinate against bacteria... certain types can be vaccinated against.

However, the decline of of bacterial diseases that we now understand how to prevent and treat using modern antibiotics still has no bearing on the efficacy of vaccines.

By your logic, the decline in Black Death proves that vaccines are unnecessary, because we don't have a vaccine for Black Death and yet there are very few cases of it. However, the truth is that increased hygiene and ready availability of antibiotics has resolved that issue, and it's unrelated to vaccination.