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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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CSV exports include up to 5,000 matching rows (applying your current filters), not the full dataset if it's larger.

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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 941–960 of 3,200 notices

Global Notice Global Historical notice

Severe Acute Respiratory Syndrome (SARS)-multi-country outbreak - Update 58

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

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

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Human influenza A/H3N2 epidemic continues in northern hemisphere update 2

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Cholera in South Africa

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Severe Acute Respiratory Syndrome (SARS)-multi-country outbreak - Update 46

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Update 77 - WHO officials to visit China

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

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

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2002 - Yellow fever in Senegal - Update 2

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2002 - Acute respiratory syndrome in Democratic Republic of the Congo - Update 2

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Severe Acute Respiratory Syndrome (SARS)-multi-country outbreak - Update 49

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Update 64 - Situation in Toronto, detection of SARS-like virus in wild animals

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2002 - West Nile virus in the United States - Update 9

Country
United States
Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Pertussis in Afghanistan - Update

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2002 - Cholera in Liberia

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Update 62 - More than 8000 cases reported globally, situation in Taiwan, data on in-flight transmission, report on Henan Province, China

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Severe Acute Respiratory Syndrome (SARS) multi-country outbreak - Update 5

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Ebola haemorrhagic fever in the Republic of the Congo - Update

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Meningococcal disease in Burkina Faso

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Legionellosis in France

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Severe Acute Respiratory Syndrome (SARS)-multi-country outbreak - Update 45

Start date
June 7, 2021
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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