Some forms of diarrhea are infectious in etiology and the disease is communicable. Cholera is an example of this. Others are functional (e.g. laxative abuse) and are not communicable.
Yes, Diarrhea is a symptom of a disease or illness
Typically a cow with Johne's Disease (which is a disease where a cow has chronic diarrhea) is considered safe to be slaughtered for food.
Traveler's diarrhea disease is usually spread by contaminated food or water.
Diarrhea can cause dehydration, a lack of fluid in the body.inflammatory bowel disease or celiac disease, and commonly leads to longer bouts of diarrhea.
Its called diarrhea
The main cause of diarrhea is food poisoning. Other culprits can also be medicine and stress, although they are rare. Some chronic conditions that trigger diarrhea are Irritable Bowel syndrome, Inflammatory Bowel Disease, Celiac Disease, Diabetes, Hyeperthyroidism, Chronic pancreatitis Disease, and Chronic Pacreatitis. http://www.webmd.com/digestive-disorders/diarrhea-10/causes-diarrhea?page=1
Diarrhea
Some people with Celiac disease are unable to tolerate grits, causing gas, bloating, and diarrhea.
its not contagious, however what ever causes it might be Diarrhea is a symptom of an ailment or disease. It in itself is not contagious but the disease causing it may be contagious.
Cholera
infamatory bowel disease
I'm sure Lou Gehrig had diarrhea occasionally, as everyone does, but the disease called Lou Gehrig's Disease is ALS or Amyotrophic Lateral Sclerosis, a degenerative disease of the central nervous system that causes the muscles to waste away.