Story of the drop: what's inside a polio vaccine that prevents up to 3 million deaths every year - Poliovirus - DAWN.COM
How Good Is the Polio Vaccine? - The Atlantic
Lessons from how the polio vaccine went from the lab to the public that Americans can learn from today
History of polio: Outbreaks and vaccine timeline
The History of the Polio Vaccine and Animal Testing | PETA
Jonas Salk | Biography, Facts, & Polio Vaccine | Britannica
U.S. Vaccine Hesitancy Is Nothing New. Here's How The Polio Vaccine Overcame It : Shots - Health News : NPR
OPV – GPEI
8 Things You May Not Know About Jonas Salk and the Polio Vaccine | HISTORY
History of polio vaccination
Polio vaccine | Description, History, & Effectiveness | Britannica
Polio vaccine - Wikipedia
Jonas Salk's Polio Vaccine Makes A Comeback : Goats and Soda : NPR
How a debate over two competing vaccines gripped the medical community — in 1961 | Salon.com
Polio vaccine - Wikipedia
The Anti-Vaccine Movement Is Forgetting the Polio Epidemic - The Atlantic
Dr. Jonas Salk Announces Polio Vaccine
There is No Cure for Polio. The Only Treatment is Prevention.
Albert Sabin - Wikipedia
Our history: Sabin and Salk competed for safest polio vaccine
Jonas Salk | Biography, Facts, & Polio Vaccine | Britannica
Polio vaccine | Description, History, & Effectiveness | Britannica
Mass Inoculation or: How New York Learned to Stop Worrying and Love the Polio Vaccine — NYC Department of Records & Information Services
The Forgotten Texan Scientist Who Helped Develop the Polio Vaccine
Tainted Cutter polio vaccine killed and paralyzed children in 1955 - The Washington Post
