B1
(an) illness caused by infection or by a failure of health rather than by an accident
Dictionary examples:
I have a rare disease that makes me allergic to homework. (0.0)
My brother's laziness is a contagious disease. Now the whole family has it! (0.0)
I have a disease that makes me invisible during math class. (0.0)
heart disease (16.2)
a common/rare disease (27.0)
The first symptom of the disease is a very high temperature. (38.1)
They reported a sudden outbreak of the disease in the south of the country. (56.8)
Starvation and disease have killed thousands of refugees. (61.7)