One of the most dreaded diseases in history, polio is now almost completely preventable today, thanks to safe and effective vaccines.
Even then some people continue to fall prey to the poliomyelitis virus that can damage nerves and lead to partial or full paralysis.
The affected areas in these 3 countries have become smaller.
However, polio has been exported to countries that have previously been polio-free, and 7 other countries have had cases of wild poliovirus and spread of polio in the last 12 months.
Polio is a disease caused by a virus that affects the nervous system and is mainly spread by person-to-person contact.
Polio can also be spread by drinking water or other drinks or eating raw or undercooked food that are contaminated with the feces of an infected person. Some people have only minor symptoms, such as fever, tiredness, nausea, headache, nasal congestion, sore throat, cough, stiffness in the neck and back, and pain in the arms and legs. In rare cases, polio infection causes permanent loss of muscle function in the arms or legs (usually the legs) or if there is loss of function of the muscles used for breathing or infection of the brain, death can occur.
New: Polio Vaccine Requirements If you are traveling to one of the following countries (that has active spread of poliovirus in the past 12 months) for more than 4 weeks, the government of the country may require you to show proof of polio vaccination when you are exiting that country: Afghanistan, Burma (Myanmar), Guinea, Laos, Madagascar, Nigeria, Pakistan, and Ukraine.