The history of polio and the vaccines that nearly eradicated it - The Washington Post
Medical Advancement: Discovery of Polio Vaccine
History of polio - BBC News
Polio Virus Detected In São Paulo Sewage, No Human Case Reported | Time
Breaking the back of polio” < Yale School of Medicine
Defeating Polio, The Disease That Paralyzed America : NPR History Dept. : NPR
Polio - Polio through history | Britannica
Jonas Salk and the Polio Vaccine (Inventions and Discovery): Krohn, Katherine, Milgrom, Al: 9780736896450: Amazon.com: Books
History of polio - BBC News
When Polio Triggered Fear Among Parents in the Post-World War II Era - HISTORY
When Polio Triggered Fear Among Parents in the Post-World War II Era - HISTORY
N.Y. state detects polio case, first in the U.S. since 2013
Polio | History of Vaccines
History of polio - Wikipedia
KUOW - The first U.S. polio case was discovered in nearly a decade. Should you worry?
Polio Was Almost Eradicated. This Year It Staged a Comeback. - The New York Times
Chapter 7: Polio Research, Conquering the "Crippler" | Connaught Fund
Polio Has Been Detected in New York City Wastewater, Officials Say - The New York Times
Who created the polio vaccine? | Live Science
When Polio Triggered Fear Among Parents in the Post-World War II Era - HISTORY
History of polio vaccination
History of Polio – GPEI
Dr. Jonas Salk Announces Polio Vaccine - HISTORY
History of polio - BBC News
