纳米细菌(Nanobacteria NB)是芬兰科学家KAJANDER等在培养哺乳动物细胞时发现在无污染的情况下,仍有部分细胞生长繁殖不佳,发生空泡样变性、溶解或凋亡。针对此种现象他们对已知所有微生物进行了检测,结果都为阴性。于是对这些细胞进行透射电镜观察,结果在细胞内发现了一种很小 Nanobacteria NB, a Finnish Scientist KAJANDER et al., Found that in the culture of mammalian cells, some cells still have poor growth, vacuole degeneration, lysis or apoptosis in the absence of pollution. For this phenomenon they tested all the known microorganisms, the results were negative. Transmission electron microscopy of these cells then revealed a small intracellular finding