Polio still persists in Afghanistan, Pakistan, and Nigeria.

From the history of polio to now

Polio is a highly contagious virus that can result in spinal cord and brainstem paralysis. It most commonly affects children under 5 years old. Cases of polio peaked in the United States in the 1952 with 57,623 reported cases. Since the Polio Vaccination Assistance Act, the United States has been polio-free since 1979.

While many other countries are also certified polio-free, the virus is still active in countries that haven’t started immunization campaigns. According to WHOTrusted Source, even one confirmed case of polio puts children in all countries at risk.

Afghanistan is set to start its immunization campaign for early October and November of 2016. National and Subnational Immunization Days are planned and ongoing for countries in West Africa. You can stay up to date with case breakdowns on The Global Polio Eradication Initiative’s website.