Particular chunks of its genome, called " pathogenicity islands" (or Sapis), seem to behave like genetic parasites; bits of DNA that replicate selfishly without regard for the well-being of their host.

其基因组的特定部分，称为“致病性岛”(或致病岛)，似乎表现得像是遗传寄生物; 这些DNA片段会自私地复制，不顾宿主的健康。