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Bacteroides biacutis, one of many commensal anaerobic Bacteroides spp. in the gastrointestinal tract.

Vitamin B12 bacterial thieves

... and this can sometimes bring us into conflict with our own microbes. Aaron Wexler explains to Chris Smith how this ... protein is so good at doing it's job it's better than our own one, and so if you put the two head to head in a ...