These are huts in an isolated village inhabited by Yanomami Amerindians in a remote, mountainous area in southern Venezuela. Members of the tribe were isolated from the modern world and had never been exposed to antibiotic drugs, but the bacteria on their skin and in their mouths and intestines still had antibiotic resistance genes.
scientists have found antibiotic resistance genes in the bacterial flora of a South American tribe that never before had been exposed to antibiotic drugs. The findings suggest that bacteria in the human body have had the ability to resist antibiotics since long before such drugs were ever used to treat disease.