Sign Up for a Free Account

This is an image preview.
Start a Free Account
to view the full image.

Sign Up for a Free Account For information on discounts, see Plans & Pricing

  • Nearly 3,000 illustrations, including video clips of neurologic disorders.

  • Every article is reviewed by our esteemed Editorial Board for accuracy and currency.

  • Full spectrum of neurology in 1,200 comprehensive articles.

  • Listen to MedLink on the go with Audio versions of each article.

Girl receiving Salk polio vaccination

A young girl receiving her Salk polio vaccination in her left upper arm. The girl was among local residents who had lined up at this mobile polio vaccination clinic. This photograph was taken in 1963, when the U.S. was shifting from the killed-virus Salk vaccine to the oral attenuated Sabin vaccine. (Source: CDC, 1963. U.S. Centers for Disease Control and Prevention, Public Health Image Library. Public domain.)

Related Media

Associated Disorders

  • Aseptic meningitis
  • Bulbar polio
  • Bulbospinal polio
  • Infantile paralysis
  • Nonparalytic polio
  • Paralytic polio
  • Polioencephalitis
  • Post-polio progressive muscular atrophy
  • Post-polio syndrome
  • Spinal paralytic polio