Celiac disease is an uncommon disease in which your immune system attacks the cells lining the small intestine. Signs and symptoms of celiac disease may include: 1  diarrhea,  bloating,
In humans, disease is often used more broadly to refer to any condition that causes pain, dysfunction, distress, social problems, or death to the person afflicted, or similar problems for those in contact with the person.orbidity (from Latin morbidus, meaning sick, unhealthy) is a diseased state, disability, or poor health due to any cause. The term may be used to refer to the existence of any form of disease, or to the degree that the health condition affects the patient.
Confidence votes 88. Infectious diseases are caused by the invasion of a microorganism to the body in sufficient concentration /number to produce disease. The severity of the disease is depend up on the virulence of the organism and the compatibility of the host. Infectious diseases are caused by the invasion of a microorganism to the body in sufficient concentration /number to produce disease.