Skip to content

    Polio Directory

    Polio (poliomyelitis) is a highly infectious viral disease passed from person to person. It invades the nervous system and can paralyze a person within hours. Initial symptoms are fever, fatigue, headache, vomiting, and neck stiffness. Polio mainly affects children under 3. Before the polio vaccine was introduced in 1955, tens of thousands of U.S. children per year developed paralytic polio. Only the inactive polio vaccine (IPV), made from dead polio virus, is used in the U.S. Starting at 2 months of age, all U.S. children receive four doses of IPV. Follow the links below to find WebMD's comprehensive coverage of polio, its history, the risk it poses, preventive vaccines, and much more.

    Medical Reference

    Features

    Thumbnail: The 10 Most Important Drugs

    These breakthrough drugs made medicine modern.

    Read Full Article

    News Archive

    Today on WebMD

    man wringing hands in pain
    Could rheumatoid arthritis be the source of your aches?
    woman eating
    Symptoms of binge eating disorder.
     
    psoriasis on female neck
    14 tips to ditch the itch.
    Close up of eye
    What's stealing your attention?