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Data Explorer

Research historical outbreak investigations and the full recall archive, with charts, trends, and advanced filters. Looking for what's happening right now instead? See current Health Alerts.

Outbreak notice totals

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

3,195
Total noticesEvery WHO Disease Outbreak News bulletin
Case total not available
Confirmed casesSum of reported illnesses
131
Countries affected
August 28, 2026
Most recent notice

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Outbreaks reported by month (Year to date)

A chart of outbreaks grouped by month.

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Source: WHO public dataLast updated

Summary (Year to date)

  • 25 outbreaks have been reported year to date.
  • Aug 2026 was 0% higher than the previous complete period (Jul 2026: 3).
  • The highest complete period was May 2026 (7).
  • Sep 2026 is incomplete and not included in the figures above.
  • Complete data
  • Incomplete

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Outbreak notices

Showing 1–20 of 33 notices

Global Notice Global Historical notice

Avian Influenza A(H5N1) - Cambodia

Start date
July 5, 2025
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Avian Influenza A(H5N1)- Cambodia

Start date
September 2, 2024
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Influenza A (H5N1) virus - Cambodia

Start date
March 12, 2024
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Influenza A (H5N1) virus - Cambodia

Start date
March 12, 2024
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Influenza A (H5N1) virus - Cambodia

Start date
March 5, 2024
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Influenza A (H5N1) virus - Cambodia

Start date
March 5, 2024
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Avian Influenza A (H5N1) - Cambodia

Start date
February 8, 2024
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Avian Influenza A (H5N1) - Cambodia

Start date
November 29, 2023
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Avian Influenza A (H5N1) - Cambodia

Start date
February 26, 2023
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

1998 - Cholera in Cambodia

Start date
June 8, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

1998 - Dengue haemorrhagic fever in Cambodia

Start date
June 8, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

1999 - Cholera in Cambodia

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Avian influenza – situation in Cambodia – update

Start date
February 1, 2013
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Severe complications of hand, foot and mouth disease (HFMD) caused by EV-71 in Cambodia – conclusion of the joint investigation

Start date
July 13, 2012
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Undiagnosed illness in Cambodia

Start date
July 4, 2012
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Avian influenza – situation in Cambodia – update

Start date
May 29, 2012
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Avian influenza – situation in Cambodia – update

Start date
April 5, 2012
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Avian influenza – situation in Cambodia – update

Start date
January 18, 2012
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Avian influenza – situation in Cambodia

Start date
January 16, 2012
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Avian influenza – situation in Cambodia - update 6

Start date
August 19, 2011
Last updated

Source: WHO

View Notice

Data last updated:

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