Polio number of cases by region worldwide 1980-2020 | Statista
Polio - Our World in Data
Progress Toward Polio Eradication — Worldwide, January 2019–June 2021 | MMWR
Two Stories of Disease: Smallpox and Polio | Grist
Lessons from how the polio vaccine went from the lab to the public that Americans can learn from today
File:Polio cases over time.svg - Wikimedia Commons
Polio - Our World in Data
Polio May Be Eradicated by 2020 | American Council on Science and Health
Polio - Our World in Data
Africa is on track to be declared polio-free | The Economist
Polio - Vaccines - ProCon.org
Chart: The Long Road to Global Wild Polio Eradication | Statista
Jason Crawford on Twitter: "Myth: polio was already declining before the introduction of the polio vaccine in 1955 Fact: the epidemics were actually getting worse https://t.co/MYSkeT1et7 https://t.co/VNSM3ngpp3" / Twitter
Weren't the death rates from these diseases dropping before vaccines came along? | Northern Rivers Vaccination Supporters
Polio number of cases by region worldwide 1980-2020 | Statista
Polio - Our World in Data
Poliovirus returns to the UK after nearly 40 years: current efforts and future recommendations | Postgraduate Medical Journal
Polio - Our World in Data
Poliomyelitis - Hot Topics - September 2022 | Children's Mercy Kansas City
Mass Inoculation or: How New York Learned to Stop Worrying and Love the Polio Vaccine — NYC Department of Records & Information Services
Polio - Our World in Data
Polio in Nigeria: 'I opposed vaccinations until my son caught polio' - BBC News
Two Stories of Disease: Smallpox and Polio | Grist
Polio - Our World in Data
Polio - Vaccine Preventable Diseases Surveillance Manual | CDC
