Advection fog occurs when warm air moves in over a cooler land surface. This happens often along coastlines, for example, when warm ocean breezes blow in over cooler land. The land cools the warm air below the dew point, and fog forms. Upslope fog occurs when warm air passes over the upward slope of a cool mountain.
Cryptosporidiosis is a diarrheal disease caused by microscopic parasites, Cryptosporidium, that can live in the intestine of humans and animals and is passed in the stool of an infected person or animal. Both the disease and the parasite are commonly known as Crypto..
Devic's disease, or neuromyelitis optica, (NMO) is a type of inflammatory demyelinating disease. A demyelinating disease occurs when the myelin sheath, a protective covering that surrounds brain and spinal cord nerves is damaged.In the case of Devic's disease, the patient develops myelitis (inflammation of the spinal cord) and optic neuritis (inflammation of the optic nerve). NMO is an example of an autoimmune disease. 2  Experts are not sure why autoimmune diseases, such as NMO occur. 3  The immune system of a patient with NMO attacks the myelin sheath, the protective blanket for the spinal cord and optic nerve.