Polio - Wikipedia
Primary Source Analysis | Poliomyelitis in 20th Century United States
Polio 101: Signs, symptoms and dangers | CNN
Polio: Virus, Causes, Symptoms, Transmission & Treatment
What is Polio?
Polio virus reappears in rich economies, exposing gaps in immunisation | Financial Times
Polio | Definition, Symptoms, Vaccine, & Facts | Britannica
History of Polio – GPEI
History of polio - BBC News
History of polio vaccination
Poliovirus - MEpedia
New York Health Department says hundreds of people may be infected with polio virus - CBS News
Polio - Wikipedia
New York detects case of vaccine-derived polio
Polio Primary Source Set | Emerging America
Polio Paralysis, March Of Dimes Poster Canvas Print / Canvas Art by Science Source - Science Source Prints - Website
Polio virus symptoms and how to check if you're vaccinated
Primary Source Spotlight: Polio | Citizen U Primary Source Nexus
Polio - Our World in Data
New Polio Outbreaks Worldwide Put Scientists on Alert - Scientific American
A Special Report on Polio | Library of Congress
History of polio - BBC News
Poliomyelitis
