Download the data
Everything on this site comes from these files. Each row says which official document it came from and where in that document to find it.
Last updated October 16, 2026.
Files
| File | What's in it |
|---|---|
| plague-cases-by-country.csv | Human plague cases, deaths, suspected and probable counts by country and year, 2019–2025 (WHO), plus U.S. 2000–2026 (CDC). |
| plague-cases-by-form-2019-2025.csv | Cases and deaths by clinical form (bubonic, pneumonic, septicemic) for the four countries that reported forms to WHO. |
| us-cases-by-state-1970-2025.csv | U.S. human plague cases by state, 1970–2025 (CDC). |
| us-2026-provisional-by-state.csv | U.S. 2026 cases so far, by state (CDC weekly, provisional). |
| sources.csv | Every source, with link, publication date and the date we accessed it. |
Sources
| Source | Published | Accessed |
|---|---|---|
| World Health Organization: Human plague, 2019 to 2025. Weekly Epidemiological Record, vol. 101, no. 38, pp. 244–251 | 2026-09-25 | October 16, 2026 |
| World Health Organization: Disease Outbreak News: Pneumonia of undetermined etiology – the Russian Federation (2026-DON620) | 2026-10-10 | October 16, 2026 |
| World Health Organization: Plague: fact sheet | Not dated | October 16, 2026 |
| U.S. Centers for Disease Control and Prevention: Human plague cases, fatal and non-fatal, United States, 2000–2025 (Plague Maps and Statistics) | 2026-10-07 | October 16, 2026 |
| U.S. Centers for Disease Control and Prevention: Reported human plague cases by state, United States, 1970–2025 (Plague Maps and Statistics) | 2026-10-07 | October 16, 2026 |
| U.S. Centers for Disease Control and Prevention: NNDSS weekly tables of notifiable diseases: Plague, 2026 week 40 (provisional) | 2026-10 | October 16, 2026 |
How to cite
Please cite the original source for each number (listed in every row), and Plague Data if you used our compilation:
Plague Data. Human plague cases and deaths by country. plaguedata.org/data. Accessed [date].
WHO and CDC remain the authorities on these figures. If our numbers ever differ from theirs, theirs are right; please tell us.