Finally, it needs iron to thrive and replicate, so it produces a siderophore, which is a term used for a group of small, high-affinity, iron chelating compounds that snatch iron from host cells.

最后，它需要人体内的铁元素来繁殖，所以它形成一种“铁载体”；铁载体是指微生物合成并分泌的螯合铁的、用于摄取铁元素的低分子量化合物，他们可以与宿主细胞竞争铁元素。