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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.

3,200
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)

A chart of outbreaks grouped by month.

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Source: WHO public dataLast updated

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.
  • Complete data
  • Incomplete

No disease breakdown is available for these filters.

Notices by country

A bar chart of the number of matching notices by country.

Notices by country
CountryNotices
Democratic Republic of the Congo6
United States2
Saudi Arabia1
Russia1
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Outbreak notices

Showing 421–440 of 3,200 notices

Global Notice Global Historical notice

Cholera- Haiti

Start date
December 13, 2022
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Ebola disease caused by Sudan ebolavirus – Uganda

Start date
December 8, 2022
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Dengue – Bangladesh

Start date
November 28, 2022
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Ebola disease caused by Sudan ebolavirus – Uganda

Start date
November 24, 2022
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Middle East respiratory syndrome coronavirus – Saudi Arabia

Start date
November 16, 2022
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Ebola disease caused by Sudan ebolavirus – Uganda

Start date
November 10, 2022
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Cholera - Malawi

Start date
November 7, 2022
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Avian Influenza A (H5N1) – Spain

Start date
November 3, 2022
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Ebola disease caused by Sudan Ebola virus – Uganda

Start date
October 28, 2022
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Rift Valley fever - Mauritania

Start date
October 20, 2022
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Cholera – Lebanon

Start date
October 19, 2022
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Malaria – Pakistan

Start date
October 17, 2022
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Dengue - Pakistan

Start date
October 13, 2022
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Cholera - Haiti

Start date
October 12, 2022
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Dengue - Nepal

Start date
October 10, 2022
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Ebola virus disease –Democratic Republic of the Congo

Start date
September 29, 2022
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Marburg virus disease - Ghana

Start date
September 28, 2022
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Ebola Disease caused by Sudan virus – Uganda

Start date
September 26, 2022
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Detection of circulating vaccine derived polio virus 2 (cVDPV2) in environmental samples– the United Kingdom of Great Britain and Northern Ireland and the United States of America

Country
United States
Start date
September 14, 2022
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Circulating vaccine-derived poliovirus type 2 - Algeria

Start date
September 13, 2022
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.

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