Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Why didn't Jonas Salk patent the polio vaccine? ?

Attachment image

2 Answers

Relevance
  • 5 months ago
    Favorite Answer

    He wanted it to be available to everybody with a minimum of red tape.

  • 2 months ago

    It is costly and time-consuming to obtain a patent, which is hard to justify if you're not planning to enforce it anywhere.

Still have questions? Get your answers by asking now.