Once it reaches the lungs, it gets ingested by alveolar macrophages and inside macrophages, it gets wrapped up in a vesicle called phagosome, which normally merges with lysosomes to kill invading bacteria.
进入肺内后,就会被肺泡巨噬细胞吞噬;在巨噬细胞内,被包裹在称为吞噬体的囊泡,通常吞噬体会与溶酶体融合,清除入侵的细菌。