New diseases

I remember in my college biology class my teacher talked about new forms of disease emerging has demographics changes. I don't think contagious cancer will be a problem for us soon, but imagine how horrible it would be if it came. I've been following the Tasmanian Devil face cancer for a while and it's always deeply disturbed me. Just sit back and imagine what would happen if something like this happened to humans? Now Hapers has an excellent article on the subject.