What makes healthy pores become clogged, infected, and sometimes ooze-y?

是什么让原本健康的毛孔堵塞、感染，有时候还流？

Pus and blood-filled wounds, incessant coughing, vomiting, and diarrhea  became common sights across the continent.

流和鲜血的伤口、持续不断的咳嗽、呕和腹泻成为整个大陆的常见景象。

The other was small and he had a running sore on the corner of his mouth.

节松散。 另一个很小， 嘴角流。

At least your fingers aren't full of pus.' Hermione was having a lot of difficulty managing her knife and fork.

至少你的手指没有流。赫敏在管理她的刀叉时遇到了很多困难。