Gregson R L, Davey M J, Prentice D E
Lab Anim. 1979 Jul;13(3):239-43. doi: 10.1258/002367779780937735.
In juvenile wild rats, bronchus-associated lymphoid tissue (BALT) development was similar to that seen in adult specified-pathogen-free rats. In adult wild rats the BALT was widespread. In one animal infected with a mycoplasma-like organism, a region of bronchoepithelium overlying a large BALT nodule was seen, through which lymphocytes appeared able to pass to make direct contact with the bronchial lumen: the significance of this observation is discussed. There was no evidence of infection in lungs from any of the specified-pathogen-free animals, where small foci of BALT were seen.
在幼年野生大鼠中，支气管相关淋巴组织（BALT）的发育与成年无特定病原体大鼠相似。在成年野生大鼠中，BALT分布广泛。在一只感染了支原体样生物体的动物中，观察到覆盖一个大BALT结节的支气管上皮区域，淋巴细胞似乎能够通过该区域与支气管腔直接接触：讨论了这一观察结果的意义。在任何一只无特定病原体动物的肺中均未发现感染迹象，这些动物的肺中可见小的BALT病灶。
