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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.

3,201
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)

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 Congo7
United States2
Saudi Arabia1
Russia1
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Outbreak notices

Showing 2,701–2,720 of 3,201 notices

Global Notice Global Historical notice

Poliomyelitis in Nigeria and West/Central Africa

Start date
June 18, 2008
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Avian influenza - situation in Bangladesh

Start date
May 28, 2008
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Enterovirus in China – update 2

Start date
May 21, 2008
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Yellow fever in the Central African Republic

Start date
May 20, 2008
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Enterovirus in China – update

Start date
May 7, 2008
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Enterovirus in China

Start date
May 1, 2008
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Avian influenza – situation in Indonesia – update 42

Start date
April 30, 2008
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Yellow fever in Liberia - update

Start date
April 25, 2008
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Severe Acute Watery Diarrhoea with V. cholerae positive cases in Viet Nam

Start date
April 22, 2008
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Rift Valley fever in Madagascar

Start date
April 18, 2008
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Avian influenza - situation in Egypt - update 10

Start date
April 17, 2008
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Avian influenza - situation in Egypt - update 9

Start date
April 15, 2008
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Dengue/dengue haemorrhagic fever in Brazil

Start date
April 10, 2008
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Avian influenza - situation in Egypt - update 8

Start date
April 8, 2008
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Avian influenza – situation in Pakistan - update 2

Start date
April 3, 2008
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Avian influenza – situation in Indonesia – update 41

Start date
April 2, 2008
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Avian influenza – situation in Viet Nam - update 5

Start date
March 18, 2008
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Avian influenza - situation in Egypt - update 7

Start date
March 11, 2008
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Yellow fever in Paraguay - update 2

Start date
March 7, 2008
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Avian influenza - situation in Egypt - update 6

Start date
March 5, 2008
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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