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.
2) Some diseases, such as tetanus, have unequivocal signs and symptoms. 3) Some diseases, such as pneumonia and nephritis, may be caused by a variety of microbes. 4) Some pathogens, such as S. pyogens, cause several different diseases. 5) Certain pathogens, such as HIVm cause disease in humans only.