The Anti-Vaccine Movement's New Frontier - The New York Times
Vaccination against polio should not be stopped | Nature Reviews Microbiology
World Polio Day: The effect of COVID-19 and what to do next | World Economic Forum
Polio Vaccine Side Effects: What to Expect
The Press Made the Polio Vaccine Trials Into a Public Spectacle | History| Smithsonian Magazine
Update: Vaccine Side Effects, Adverse Reactions, Contraindications, and Precautions Recommendations of the Advisory Committee on Immunization Practices (ACIP)