The second seat may be purchased for the same fare as the original seat, provided it is purchased at the same time. A customer who does not purchase an extra seat in advance may be required to do so on the day of departure for the fare level available on the day of departure.
Multiple Sclerosis. Multiple Sclerosis (MS) is a diseases of the central nervous system which leads to recurring attacks of neurological symptoms. Learn more about its causes, symptoms, diagnosis and treatment here. Cerebrovascular Disease. Cerebrovascular disease refers to disorders of the blood vessels that supply blood flow to the brain. Here is information about various cerebrovascular diseases including brain aneurysms and stroke.
Neuromyelitis optica, also called NMO or Devic's disease, is a rare yet severe demyelinating autoimmune inflammatory process affecting the central nervous system. It specifically affects the myelin, which is the insulation around the nerves. NMO mainly affects the spinal cord and the optic nerves -- the nerves that carry signals from the eyes to the brain. As a result, the disease can cause paralysis and blindness. Neuromyelitis optica most often strikes during childhood.