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.
Infectious diseases are contagious and can be transmitted to other people. They are caused by pathogens that you might also refer to as germs. The most common cause of infectious diseases are pathogens called viruses and bacteria, but they can also be caused by fungi or protozoa. Pathogens can be spread in different ways. Luckily, we can help prevent infectious diseases with good hygiene.