Outbreaks
3 outbreaks with WHO updates in the last 90 days, across 4 countries — the largest by reported deaths is Ebola (4,687 deaths per WHO, as of 20 October 2026). Case figures are WHO's own, from each outbreak's latest Disease Outbreak News; attention is measured news coverage, never infection risk.
Countries with active outbreaks — red: WHO reports deaths; blue: no deaths in WHO's latest figures. Country-level only: a fill marks the reporting country, not where within it.
Active
Democratic Republic of the Congo, Kenya, Nigeria
9,704 confirmed cases · 4,687 deathsper WHO, as of 20 October 2026
1 WHO update since Oct 23, 2026 · 4,578 articles/14d (+175%)
Russia
WHO's latest update states no cumulative totals — read the assessment.
1 WHO update since Oct 10, 2026
Democratic Republic of the Congo
7,890 confirmed cases · 3,799 deathsper WHO, as of 23 September
10 WHO updates since Sep 5, 2025 · 628 articles/14d (+16%)
No recent WHO updates
Last Disease Outbreak News item older than 90 days. Absence of updates is not an end declaration — WHO announces outbreak ends separately, and quiet can simply mean quiet reporting.
| Ebola | Democratic Republic of the Congo, Uganda | 2,124 cases · 828 deaths (final WHO figures) | Jul 17, 2026 |
| Hantavirus | region | 13 cases (final WHO figures) | Jul 2, 2026 |
| Nipah virus | India | — | Jun 25, 2026 |
| Yellow fever | global | — | Jun 24, 2026 |
| Measles | Bangladesh | — | Apr 23, 2026 |
| Avian influenza | Italy | — | Apr 10, 2026 |
| International food safety event: Infant formula and products containing arachido | region | — | Mar 13, 2026 |
| Mpox | region | — | Feb 14, 2026 |
| Nipah virus | Bangladesh | — | Feb 6, 2026 |
| Marburg virus disease | Ethiopia | 19 cases (final WHO figures) | Jan 26, 2026 |
| MERS | global | 19 cases (final WHO figures) | Dec 24, 2025 |
| Influenza | region | — | Dec 10, 2025 |
| Avian influenza | United States | — | Dec 5, 2025 |
| Diphtheria | region | — | Nov 21, 2025 |
| Rift Valley fever | Mauritania, Senegal | 404 cases · 42 deaths (final WHO figures) | Nov 5, 2025 |
| Chikungunya | unspecified | 228,591 cases (final WHO figures) | Oct 3, 2025 |
| Cholera | region | — | Aug 29, 2025 |
| Polio | Israel | — | Aug 20, 2025 |
| Rabies | Timor-Leste | — | Jul 24, 2025 |
| Avian influenza | Cambodia | 27 cases (final WHO figures) | Jul 5, 2025 |
Travel health notices
Issued by the US CDC for US travellers (public domain) — one country's assessment, shown with its jurisdiction, not universal guidance. Level 1 = usual precautions, 4 = avoid all travel.
- Level 4 - Ebola Bundibugyo Virus Disease in Ituri and Nord-Kivu Provinces of the Democratic Republic of the Congo
Level 4 · CDC (United States) · 2026-08-04
- Level 3 - Ebola Bundibugyo Virus Disease in Haut-Uélé and Tshopo Provinces of the Democratic Republic of the Congo
Level 3 · CDC (United States) · 2026-08-04
- Level 2 - Yellow Fever in Colombia
Level 2 · CDC (United States) · 2026-10-16
- Level 2 - Yellow Fever in Ghana
Level 2 · CDC (United States) · 2026-10-16
- Level 2 - Global Polio
Level 2 · CDC (United States) · 2026-09-23
- Level 2 - Chikungunya in Nicaragua
Level 2 · CDC (United States) · 2026-09-03
- Level 2 - Ebola Bundibugyo Virus Disease in the Democratic Republic of the Congo and Uganda
Level 2 · CDC (United States) · 2026-08-28
- Level 2 - Zika in Indonesia
Level 2 · CDC (United States) · 2026-08-07
- Level 2 - Chikungunya in Costa Rica
Level 2 · CDC (United States) · 2026-07-30
- Level 2 - Malaria in Yemen
Level 2 · CDC (United States) · 2026-06-11
- Level 2 - Chikungunya in French Guiana
Level 2 · CDC (United States) · 2026-06-04
- Level 2 - Malaria in Mayotte
Level 2 · CDC (United States) · 2026-06-02
- Level 2 - Meningococcal Disease in the Democratic Republic of the Congo
Level 2 · CDC (United States) · 2026-03-24
- Level 1 - Ebola Bundibugyo Virus Disease in Kenya
Level 1 · CDC (United States) · 2026-10-19
- Level 1 - Global Dengue
Level 1 · CDC (United States) · 2026-10-02
- Level 1 - Hepatitis A in Costa Rica
Level 1 · CDC (United States) · 2026-09-18
- Level 1 - Paratyphoid Fever in Yemen
Level 1 · CDC (United States) · 2026-08-26
- Level 1 - Diphtheria in Sub-Saharan Africa
Level 1 · CDC (United States) · 2026-08-25
- Level 1 - Diphtheria in Haiti
Level 1 · CDC (United States) · 2026-06-25
- Level 1 - Hepatitis A in Canada
Level 1 · CDC (United States) · 2026-06-04
- Level 1 - Rocky Mountain Spotted Fever in Mexico
Level 1 · CDC (United States) · 2025-12-23
- Level 1 - Global Measles
Level 1 · CDC (United States) · 2025-05-28
Outbreak events and case figures indexed from the WHO Disease Outbreak News (facts and links; read each assessment at WHO). DON covers internationally significant events and is explicitly not exhaustive — a disease absent here is not absent from the world. News attention from GDELT thematic tagging, aggregated by Geotone (CC BY 4.0). Base map: Natural Earth (public domain). Updated daily.