New Scientist: Ancient Ancestors had Tummy Bug Too
http://www.newscientist.com/article/dn3004The stomach-infesting bacterium Helicobacter pylori has been living in humans for at least 11,000 years - much longer than previously thought, say US researchers.
Submitted in section: Archaeology: Topics: Bioarchaeology: New Scientist: Ancient Ancestors had Tummy Bug Too