Patterns of smallpox mortality in London, England, over three centuries | bioRxiv
File:Global number of reported smallpox cases (1920-2016).svg - Wikimedia Commons
Smallpox Vanquished | Pfizer
Smallpox cases in the United States 1900-1952 | Statista
Smallpox | CDC
Data Highlights - 19: Two Stories of Disease: Smallpox and Polio | EPI
Effectiveness of one dose of MVA–BN smallpox vaccine against mpox in England using the case-coverage method: an observational study - The Lancet Infectious Diseases
Chapter 9: Smallpox the "Speckled Monster" | Connaught Fund
Smallpox - Our World in Data
The Last Smallpox Epidemic in Boston and the Vaccination Controversy, 1901–1903 | NEJM