Polio - Prognosis
The prognosis for mild and moderate polio is good. Most patients recover completely within a short period of time. Of those who have the severest form of polio, about half will recover completely. A quarter will experience some disability, and another quarter will have permanent and serious disability. About 1 percent of all those who have the most serious form of polio die of the disease.
In recent years, a new medical problem known as postpolio syndrome has been diagnosed. The condition shows up thirty years or more after a person has had a mild or moderate form of the disease. Postpolio syndrome affects about 25 percent of polio patients. The major symptom of postpolio syndrome is a very slow decrease in muscle strength.
