National Geographic: Antibiotics in African Beer Gave Health Boost

A new study of the bones of 4th century Nubian people from the Sudan in North Africa leads experts to speculate that their beer may have had antibiotic properties.

The bones, dating from 350 to 500 C.E., contain traces of tetracycline, a drug now used to treat infections. Accoding to research, beer consumed by some of the people was contaminated with streptomycedes, a bacterium which produces tetracycline.