In a paper published this month in Nature, scientists studied the microbiomes of 1,787 people in remote Honduras, revealing influence from social groups on microbiome sharing.
Their findings suggest that microbial sharing occurs not only within households but also among non-familial and non-household connections, extending to friends of friends.
The most strain-sharing happened among individuals in relationships and those living together, indicating close social ties enhance microbial exchange.
These insights raise questions about how microbial strains, potentially influencing mental health, could be transmitted through social interactions.
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