Now What caused the cow to have pimples on its teats is any bodies guess, but the pimples didn't cause themselves. There was a cause right?

To take the result of a disease and claim it will prevent disease was and is absurd.

We know exactly what causes the pimples - it is Cow Pox. We know it is a virus and we know its genetic makeup.

What was observed was that milk maids did not get smallpox when exposed to it. It was then observed that the milkmaids had been exposed to cow pox. It was then observed that when someone was infected by cow pox they were immunised against smallpox. It is a natural remedy.

There is a name for alternative medicines that work, they are called "Medicine".

This Bangladeshi child is infected with smallpox, something we will never see again because vaccines eradicated it. A natural remedy has saved mankind from this misery. Yet, you wish it to continue.