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Outbreak notice totals

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

3,201

Total noticesEvery WHO Disease Outbreak News bulletin

Case total not available

Confirmed casesSum of reported illnesses

131

Countries affected

October 23, 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 25, 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	7
United States	2
Saudi Arabia	1
Russia	1

Outbreak notices

Global Notice Global Historical notice

Hepatitis E in Sudan

Start date: August 10, 2004
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

WHO announces end of Ebola outbreak in southern Sudan

Start date: August 7, 2004
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Avian Influenza - Assessment of the current situation

Start date: July 30, 2004
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Avian Influenza - Necessary precautions to prevent human infection of H5N1, need for virus sharing

Start date: July 16, 2004
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Shigellosis in Sudan

Start date: July 14, 2004
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Avian influenza - Current evaluation of risks to humans from H5N1 following recent reports

Start date: July 8, 2004
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola haemorrhagic fever in south Sudan - update 8

Start date: July 6, 2004
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola haemorrhagic fever in south Sudan - update 7

Start date: June 22, 2004
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Leptospirosis in Kenya

Start date: June 17, 2004
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Cholera in Cameroon

Start date: June 15, 2004
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola haemorrhagic fever in south Sudan - update 5

Start date: June 11, 2004
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola haemorrhagic fever in south Sudan - update 4

Start date: June 7, 2004
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Salmonella Enteritidis in the United States of America

Country: United States
Start date: June 2, 2004
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola haemorrhagic fever in south Sudan - update 3

Start date: June 1, 2004
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola haemorrhagic fever in south Sudan - update 2

Start date: May 26, 2004
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola haemorrhagic fever in south Sudan - update

Start date: May 24, 2004
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

China’s latest SARS outbreak has been contained, but biosafety concerns remain – Update 7

Start date: May 18, 2004
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Dengue fever in Indonesia - update 4

Start date: May 11, 2004
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

SARS in China: investigation continues – Update 6

Start date: May 5, 2004
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

China confirms SARS infection in another previously reported case; summary of cases to date – Update 5

Start date: April 30, 2004
Last updated: July 21, 2026 ET

Data last updated: October 25, 2026 ET

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