undiscovered until 2008, they happened to host the diverse human biome ever recorded. >> they have about half at the population u.s. has. >> pristine microbiomes largely untouched by modern day medicine or members outside the community. researchers wondered, what have relost and how? >> these are extremely healthy people. we want to understand what they have, how they function with their microkroep. there is a lot of variation here. >> microbial anthropologist to piloted this research tested samples from 34 members of the community. they found that they harbored aebt resistant genes. >> so want to under stand what