Polio

Polio, or poliomyelitis, is a highly infectious viral disease that affects the nervous system, particularly in young children. It is caused by the poliovirus, and can lead to paralysis, disabilities and even death. Polio is spread through contact with an infected person or through drinking contaminated water. Vaccination is the most effective way to prevent infection. The World Health Organization (WHO) has supported a global polio eradication campaign since 1988, and there has been a dramatic decrease in cases since. As of 2020, polio is now only found in two countries – Afghanistan and Pakistan. Vaccination campaigns have been successful in limiting transmission and preventing new cases, but continued efforts are needed to ensure that the virus does not spread to other parts of the world.