The polio vaccine is controversial not because of its side effects but because some people question whether this vaccine is even necessary in this country anymore. There hasn't been a case of paralytic polio in the United States since 1993, and it has become extinct in all developed countries. This section presents the background of the polio infection and the pros and cons of the polio vaccine.

  1. Home
  2. Vaccines
  3. The Polio Vaccine
Visit other About.com sites: