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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 24, 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

Unknown illness in Angola - Update

Start date: November 21, 2007
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Unknown illness in Angola

Start date: November 16, 2007
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Rift Valley Fever in Sudan - update 2

Start date: November 14, 2007
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Avian influenza – situation in Indonesia – update 24

Start date: November 12, 2007
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Rift Valley Fever in Sudan - update

Start date: November 7, 2007
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Avian influenza – situation in Indonesia – update 23

Start date: November 5, 2007
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Avian influenza – situation in Indonesia – update 22

Start date: October 31, 2007
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Avian influenza – situation in Indonesia – update 21

Start date: October 25, 2007
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Avian influenza – situation in Indonesia – update 20

Start date: October 17, 2007
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Avian influenza – situation in Indonesia – update 19

Start date: October 12, 2007
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Avian influenza – situation in Indonesia – update 18

Start date: October 8, 2007
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Cholera in Iraq - update 3

Start date: October 3, 2007
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola haemorrhagic fever in the Democratic Republic of the Congo - update 4

Start date: October 3, 2007
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Avian influenza – situation in Indonesia – update 17

Start date: October 2, 2007
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola haemorrhagic fever in the Democratic Republic of the Congo - update 3

Start date: September 27, 2007
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Cholera in Iraq - update 2

Start date: September 25, 2007
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola haemorrhagic fever in the Democratic Republic of the Congo - update 2

Start date: September 20, 2007
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Cholera in Iraq - update

Start date: September 14, 2007
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola haemorrhagic fever in the Democratic Republic of the Congo - update

Start date: September 13, 2007
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Ebola haemorrhagic fever in the Democratic Republic of the Congo

Start date: September 11, 2007
Last updated: July 21, 2026 ET

Data last updated: October 24, 2026 ET

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