The Black Plague victims developed common symptoms. First of all, they would start to get a very high fever. Following the fever they would also, have to urge to vomit. Also, they would have extreme muscular pain.
They get extreme mental symptoms. The first is delirium; witch means you will have very power hallucinations. They will also have mental disorientation.
Budo Related Symptoms
The victims may also experience much more deadly symptoms. Major swelling of the lymph nodes. The lymph nodes start out red, and then turn dark purple or black. Whine in this phase the lymph nodes are slowly rotting and will explode. Leading to your death.