Medicine: Too Many Polio Vaccines?

Proponents and opponents of live-virus poliomyelitis vaccines, which are taken by mouth, got closer to the infighting last week. All the leading scientists involved on both sides of the struggle to displace the Salk killed-virus vaccine (which must be injected) appeared at research meetings in Atlantic City and Newark, N.J., and nearly all took off the gloves. Government umpires looked on uncomfortably, dreading the day when they have to decide on licensing an oral vaccine.

Shift in Aim. Despite five years of intensive efforts to get everybody in the U.S. Salk-vaccinated (about 300...

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!