>>11993249Note that herd immunity does not imply no one gets sick, only that the spread of a pathogen is well contained and does not spread throughout the herd. But to answer your question, no disease exists that has been eradicted without a vaccine.
>https://en.wikipedia.org/wiki/Eradication_of_infectious_diseasesBut note also that viruses and bacteria that haven't been eradicated fully can become less prevalent, to the point of no longer being a problem. An example of this is yersinia Pestis (responsible for the bubonic plague).
One thing to keep in mind is that selection pressure for infectious diseases is such that the most deadly viruses and bacteria are less likely to spread, thus facilitating evolution towards less deadly variants. A pathogen that kills its host immediately and without fail is also less likely to spread than one that produces little if any symptoms. This is why the latter are extremely common (e.g. herpes simplex), and outbreaks of seriously deadly pathogens tend to be well confined (e.g. ebola).
This being said, the point that I initially wanted to make is that herd immunity and a vaccine are not two approaches that should be pitted against one another, because herd immunity can be achieved through a vaccine.
>>11993246Shut the fuck up retard
