skillywilly56 t1_j5hsprj wrote on January 23, 2023 at 2:23 AM

Reply to comment by Wallabills in How our microbiome is shaped by family, friends, and even neighbors. Study of the gut and mouth microbiomes of thousands of people from around the world raises the possibility that diseases linked to microbiome dysfunction, including cancer, diabetes, and obesity, could be partly transmissible. by MistWeaver80

Bacteria produce antibiotics as a defense mechanism against neighboring microbes to secure their patch, so it’s a kind of all out chemical war for supremacy because they evolve so quickly.