The information they gather is used to create a geographical map and timeline of the outbreak. Epidemiologists, though, do not treat patients.

他们收集的数据用来制作地图和疾病暴发的时间线，但是流行病专家并不给患者提供治疗。

There were four white walls: in one corner a cot bed with a blue and white checked coverlet; in another, a small table with a little library; four chairs, and one ancient geographical map nailed to the wall.

四壁粉得雪白，室的一角摆着小床，别一角排着桌子和书架，四张椅子。壁上挂着旧地图。