Medicine: Polio Decline

Polio is declining sharply in most of the U.S. for the second year, with abundant evidence that much of the improvement is due to the Salk vaccine. Four months of the "disease year" (since the number of cases reached its annual low around April 1) have passed, and indications are that fewer than 1,900 cases will be reported for the period. This is just half the 3,800 in the same period last year, and less than one-third of the 1951-56 average tally. So far this year no area has reported a major epidemic comparable to Chicago's last year, which was raging...

Want the full story?

Subscribe Now

Subscribe
Subscribe

Get TIME the way you want it

  • One Week Digital Pass — $4.99
  • Monthly Pay-As-You-Go DIGITAL ACCESS$2.99
  • One Year ALL ACCESSJust $30!   Best Deal!
    Print Magazine + Digital Edition + Subscriber-only Content on TIME.com

Learn more about the benefits of being a TIME subscriber

If you are already a subscriber sign up — registration is free!