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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 21, 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

2002 - West Nile virus in Canada - Update 2

Start date: June 7, 2021
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Influenza A(H5N1) in Hong Kong Special Administrative Region of China

Start date: June 7, 2021
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Cholera in Liberia - Update

Start date: June 7, 2021
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Severe Acute Respiratory Syndrome (SARS)-multi-country outbreak - Update 47

Start date: June 7, 2021
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Severe Acute Respiratory Syndrome (SARS) - multi-country outbreak - Update 23

Start date: June 7, 2021
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Cholera in Liberia - Update 2

Start date: June 7, 2021
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola haemorrhagic fever in the Republic of the Congo - Update 4

Start date: June 7, 2021
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Plague in Algeria

Start date: June 7, 2021
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Severe Acute Respiratory Syndrome (SARS)-multi-country outbreak - Update 57

Start date: June 7, 2021
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Poliomyelitis in Chad

Start date: June 7, 2021
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Severe Acute Respiratory Syndrome (SARS) multi-country outbreak - Update 3

Start date: June 7, 2021
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Severe acute respiratory syndrome (SARS) in Singapore - update 2

Start date: June 7, 2021
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

2002 - West Nile virus in Canada - Update 8

Start date: June 7, 2021
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Crimean-Congo haemorrhagic fever (CCHF) in Mauritania

Start date: June 7, 2021
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Severe Acute Respiratory Syndrome (SARS) - multi-country outbreak - Update 18

Start date: June 7, 2021
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Outbreak in British Columbia, Canada is not SARS

Start date: June 7, 2021
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Severe Acute Respiratory Syndrome (SARS) - multi-country outbreak - Update 35

Start date: June 7, 2021
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Cholera in Iraq

Start date: June 7, 2021
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Update 75 - Update on Situation in Singapore

Start date: June 7, 2021
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Update 94 – Preparing for the next influenza season in a world altered by SARS

Start date: June 7, 2021
Last updated: July 21, 2026 ET

Data last updated: October 21, 2026 ET

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