Encyclopedia > Polio vaccine

Article Content

Polio vaccine

Two polio vaccines are used throughout the world to combat polio. The first was invented by Jonas Salk, and first tested in 1952 and announced to the world by Salk on March 26, 1953. It consists of an injected dose of killed polio virus. Albert Sabin[?] produced a cheaper and more effective oral polio vaccine in 1962.

Polio vaccination site http://www.whale.to/vaccines/polio4

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Indian reservation

... Reservation[?] Flathead Indian Reservation[?] Blackfeet Indian Reservation[?] Rocky Boy's Indian Reservation[?] Fort Belknap Indian Reservation[?] Fort Peck Indian ...