Serology rules out viruses, CSS smears rule out parasites.

脑脊液涂片排除了寄生虫.

Diagnosis of Measles is usually done via serology —looking for measles antibodies in blood serum, and the disease is usually most likely to occur among unvaccinated individuals.

通常经过血清学检测查找血清的麻疹抗体可诊断麻疹，并且该疾病最可能发生在未接种麻疹疫苗的人群。

Labs including full blood count, liver enzymes and serology can be useful to identify the cause and an upper GI Endoscopy can identify esophageal varices in order to treat them appropriately.

全血细胞计数、肝酶和血清学在内的实验室检查，可用于确定病因；上道内窥镜检查可以识别食管静脉曲张，以便对其进行适当治疗。

Let's start with the FDA which has a page about emergency use authorizations and if you scroll down, what you see is that there are 7 that have been approved for serology.

从FDA开始，它有一个关于紧急使用授权的页面，如果向下滚动，你能看到已有7个项目被批准用于血清学检测。