Diagnosing sleeping sickness is difficult, but once a direction is established, sophisticated laboratory tests can be conducted. If the results can be matched against the corresponding indices, the diagnosis is nearly confirmed.
Moreover, lymphatic fluid from the patient's swollen lymph nodes can be extracted. There's a high chance of finding the pathogen, though it also depends on luck whether the pathogen can be successfully isolated from the sample.
In fact, Wang Huan's inquiries basically confirmed it: the source of his infection was a class reunion. The patient had attended a university reunion six months ago, and one of his classmates there frequently traveled to Africa on business.
"President Liu, we can confirm the diagnosis now. It's sleeping sickness caused by Gambian trypanosome. It's challenging to treat," Wang Huan said, catching up with Liu Banxia, who was making his rounds.
