They are called ill, sick, or diseased. In a medical setting the person is called "a patient" or "the patient".
It is called as communicable disease.
Communicable or Contagious.
The disease which is spread from person to person is called infectious disease. For example flu is a viral disease through which the other person is infected from the patient
person who specializes in female disease is called
A person with a hidden gene for a particular disease is commonly called a carrier. This person carries a gene for a disease, however, the disease may not always attack the person's body.
That person may be asymptomatic and considered to be a carrier.
The hereditary disease, Hemophilia causes nonstop bleeding.A person who suffers from this disease is called a Hemophiliac.
Dry
They are called Healthy.
This person is called a carrier. Some carriers do not show any signs of the disease but others do (as someone with a cold).
When a person discovers a disease it is usually named after them. This is called, "Eponymous." Eponym
its caused by a disease called leprosy