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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 901–920 of 3,200 notices

Global Notice Global Historical notice

Update 83 – One hundred days into the outbreak

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 38

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 9

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Dengue fever in India

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Yellow fever in Burkina Faso

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Update 92 – Chronology of travel recommendations, areas with local transmission

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 14

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2002 - Cholera in Democratic Republic of the Congo

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 43

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Dengue fever in India - update

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2002 - Yellow fever in Senegal - Update 5

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Update 71 - Status of diagnostic tests, training course in China

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 3

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 30

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 55

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2002 - West Nile virus in Canada - Update 3

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 37

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 27

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Suspected acute haemorrhagic fever syndrome in the Republic of the Congo

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Update 88 – New cases reported in China and Japan

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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