Gut microbiome strain-sharing within isolated village social networks.

ABSTRACT: When humans assemble into face-to-face social networks, they create an extended social environment that permits exposure to the microbiome of others, thereby shaping the composition and diversity of the microbiome at individual and population levels^1-6. Here we use comprehensive social network mapping and detailed microbiome sequencing data in 1,787 adults within 18 isolated villages in Honduras⁷ to investigate the relationship between network structure and gut microbiome composition. Using both species-level and strain-level data, we show that microbial sharing occurs between many relationship types, notably including non-familial and non-household connections. Furthermore, strain-sharing extends to second-degree social connections, suggesting the relevance of a pers

SUBMITTER: Beghini F 

PROVIDER: S-EPMC11666459 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature