Polio Home > Information on Polio
Also known as poliomyelitis or infantile paralysis, polio is an infectious disease that was once very common in the United States. It is caused by a virus and is highly contagious. Before the introduction of the polio vaccine in 1955, thousands of people each year became severely ill from this disease. However, due to a long-term and widespread vaccination effort, the number of polio cases worldwide continues to drop.
Although no cure for polio exists, most people recover without any long-term problems. Less than 1 percent of infected people will develop permanent paralysis.
(Click Polio for more information on this condition, including how long a person with polio is contagious.)