American association of physical anthropologists meeting-Tuberculosis Jumped from Humans to Cows, Not Vice Versa

sea-maid submitted, created time 6 months 1 week (www.sciencemag.org)

This is about an American association of physicial anthropologists meeting,which
mainly talk about the thesis "Tuberculosis Jumped From Humans to Cows, Not Vice Versa."

At the meeting, a DNA study of 10 species of mycobacteria showed that early humans were infected with strains of Mycobacterium tuberculosis, which cause TB, long before they began herding cattle. That suggests that it was humans who transmitted the disease to bovids and other animals. "TB spread from humans to animals," perhaps when modern humans emerged from Africa to spread around the globe, reported graduate student Luz-Andrea Pfister of Arizona State University in Tempe in her talk.

Keywords: mycobacteria evolutionary biology domestic animals animals Pfiser origins of tuberculosis origins of disease cows Tuberculosis