thanks for the link
Stormy's brain turns me on. Heh.
I just learned a new word...zoonosis.
quote from Wiki: Many modern diseases, even epidemic diseases, started out as zoonotic diseases. It is hard to be certain which diseases jumped from other animals to humans, but there is good evidence that measles, smallpox, influenza, HIV, and diphtheria came to us this way. The common cold, and tuberculosis may also have started in other species.
This is a very good article.