by Rosalyn Carson-DeWitt, MD
Poliomyelitis (polio) is serious viral infection. At this time, it’s very rare in the Western world because of vaccination programs.
Polio is still a big problem in parts of Africa and Asia.
A certain virus causes polio. You can get polio if you have contact with:
The virus enters the body through the mouth and travels into the bowels. It grows and spreads quickly. The virus can also travel through the blood and lymph streams. From there, it can attack and damage parts of the nervous system. This can lead to loss of muscle control and paralysis.
Your chances of polio are higher if you:
Some people may not have symptoms. Others may feel like they have a cold or the flu. This may cause:
If the nervous system is affected, it may cause:
People with steady muscle weakness may get postpolio syndrome years after their first infection. This may cause further muscle weakness, fatigue, and breathing and swallowing problems.
The doctor will ask about your symptoms, and health and travel history. You may also have:
The goal of care is to ease symptoms while your body heals. It will also help lower the chance of serious health problems. Care may involve:
Getting the polio vaccine is the best way to stop the disease. Most adults received this vaccine when they were children. If you’re at high risk for getting polio, you may need a booster vaccine. High risk includes:
The number of doses that you need depends on how many you've had in the past. Talk to your doctor if you are at high risk.
Healthy Children—American Academy of Pediatrics
World Health Organization
Public Health Agency of Canada
Polio eradication. Centers for Disease Control and Prevention website. Available at: https://www.cdc.gov/polio. Updated December 20, 2017. Accessed May 22, 2018.
Poliomyelitis. EBSCO DynaMed Plus website. Available at: http://www.dynamed.com/topics/dmp~AN~T116045/Poliomyelitis . Updated May 14, 2018. Accessed May 22, 2018.
Poliomyelitis. Merck Manual Professional Version website. Available at: https://www.merckmanuals.com/professional/infectious-diseases/enteroviruses/poliomyelitis. Updated February 2018. Accessed May 22, 2018.
Poliomyelitis (polio). World Health Organization website. Available at:
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Accessed May 22, 2018.
Last reviewed May 2018 by David L. Horn, MD, FACP
Last Updated: 5/22/2018
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