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A comment on Fish have a brain microbiome – could humans have one too?. Parent comment

Re:Fish have a brain microbiome – could humans have one too? by kazinator on Thursday December 05, 2024 @02:58AM (#42325984)
The gut is an involution of the outside surface; whatever is in the gut is essentially outside of the body, the same way that the inside of the hole of a donut is actually outside of the donut.
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