Comment Re:Fleas (Score 2) 30
The Nature article is okay, although the title could be better. The Slashdot summary is crap. The Nature subtitle is "When hunter-gatherers began living close to animals, the pathogens that cause the plague and leprosy got closer too."
Zoonotic infection didn't start with animal herding. Herpes simplex type 2 likely jumped to our ancestors from chimps more than a million years ago. Zoonotic infection became much more common, i.e. "the pathogens got closer" with herding.
Plague might or might not be due to herding. It could be: humans tend to put their food scraps in dumps away from their living space but throw things like chicken or horse feed on the ground where mice can get it. Agriculture in general also lets us live in higher concentrations, which makes successful crossover, i.e. it infects enough people to notice, more likely.