这个词是什么意思？
A rod-shaped, gram-positive, non-acid-fast, non-spore-forming, non-motile bacterium that is a genus of the family Bifidobacteriaceae, order Bifidobacteriales, class ACTINOBACTERIA. It inhabits the intestines and feces of humans as well as the human vagina.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D001644 · MeSH 2026。
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