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
Polio - Vaccine Preventable Diseases Surveillance Manual | CDC
Further Review: The Fight Against Polio | The Spokesman-Review
Urgent polio boosters for London children - BBC News
Polio number of cases by region worldwide 1980-2020 | Statista
Polio Data Quality Improvement in the African Region
Polio - Our World in Data
How India managed to defeat polio - BBC News
The American Association of Immunologists - Polio: Part III—The Vaccine
Two decades of battle against polio: opening a window to examine public health in China - ScienceDirect
Polio - Our World in Data
The world just took a step closer to eradicating polio | World Economic Forum
Global Polio Cases by World Bank Regions, 1980-2019
Polio - Our World in Data
Polio - Our World in Data
Polio - Our World in Data
Global epidemiology of vaccine-derived poliovirus 2016–2021: A descriptive analysis and retrospective case-control study - eClinicalMedicine
Polio - Our World in Data
Chart: The Long Road to Global Wild Polio Eradication | Statista
Polio - Our World in Data
Africa Is Polio-Free, After Nigeria Reports No New Cases – BRINK – Conversations and Insights on Global Business
Progress Toward Polio Eradication — Worldwide, 2015–2016 | MMWR
Polio Elimination in the United States
