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Outbreak notice totals

All-time counts across every WHO Disease Outbreak News bulletin in Public Health Trace.

3,200

Total noticesEvery WHO Disease Outbreak News bulletin

Case total not available

Confirmed casesSum of reported illnesses

131

Countries affected

October 15, 2026

Most recent notice

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Outbreaks reported by month (Year to date)

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Source: WHO public dataLast updated October 23, 2026 ET

Summary (Year to date)

27 outbreaks have been reported year to date.
Sep 2026 was 33% lower than the previous complete period (Aug 2026: 3).
The highest complete period was May 2026 (7).
Oct 2026 is incomplete and not included in the figures above.

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No disease breakdown is available for these filters.

Notices by country

Notices by country
Country	Notices
Democratic Republic of the Congo	6
United States	2
Saudi Arabia	1
Russia	1

Outbreak notices

Global Notice Global Historical notice

Ebola virus disease – Democratic Republic of the Congo

Start date: August 4, 2018
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola virus disease – Democratic Republic of the Congo

Start date: July 25, 2018
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola virus disease – Democratic Republic of the Congo

Start date: July 6, 2018
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola virus disease – Democratic Republic of the Congo

Start date: June 20, 2018
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola virus disease – Democratic Republic of the Congo

Start date: June 13, 2018
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola virus disease – Democratic Republic of the Congo

Start date: June 11, 2018
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola virus disease – Democratic Republic of the Congo

Start date: June 6, 2018
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola virus disease – Democratic Republic of the Congo

Start date: June 5, 2018
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola virus disease – Democratic Republic of the Congo

Start date: May 30, 2018
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola virus disease – Democratic Republic of the Congo

Start date: May 23, 2018
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola virus disease – Democratic Republic of the Congo

Start date: May 21, 2018
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola virus disease – Democratic Republic of the Congo

Start date: May 17, 2018
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola virus disease – Democratic Republic of the Congo

Start date: May 14, 2018
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola virus disease – Democratic Republic of the Congo

Start date: May 10, 2018
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Diphtheria – Bangladesh

Start date: December 13, 2017
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Cholera – Zambia

Start date: December 11, 2017
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Cholera – Kenya

Start date: December 11, 2017
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Plague – Madagascar

Start date: November 27, 2017
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Yellow fever – Brazil

Start date: November 24, 2017
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Marburg virus disease – Uganda and Kenya

Start date: November 15, 2017
Last updated: July 21, 2026 ET

Data last updated: October 23, 2026 ET

Outbreak investigations may be ongoing; case counts, hospitalizations, and deaths are updated by CDC as investigations continue. Read the full medical disclaimer.