The anthrax toxin, which also enters other cells, is thought to contribute to mortal illness not only by dampening immune responses but also by playing a direct role.

• 炭疽毒素还会进入人体中的其他细胞。一般相信，它之所以会引起致命的疾病，不只因为降低了免疫反应，还有更直接的作用。