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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 961–980 of 3,200 notices

Global Notice Global Historical notice

Severe Acute Respiratory Syndrome (SARS)-multi-country outbreak - Update 60

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Severe acute respiratory syndrome (SARS) in Singapore

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Update 96 - Taiwan, China: SARS transmission interrupted in last outbreak area

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Cholera in Mozambique - Update

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Yellow fever in Sierra Leone - update

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Update 87 - World Health Organization changes last remaining travel recommendation -- for Beijing, China

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Human influenza activity further increases and spreads to more countries in northern hemisphere - update 4

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Update 66 - Situation in Toronto, interpretation of “areas with recent local transmission”

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Plague in Algeria - Update

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2002 - Yellow fever in Senegal - Update 4

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2002 - West Nile virus in Canada - Update

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Acute respiratory syndrome in China - 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 59

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 4

Country
United States
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 21

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Update 61 - WHO extends its SARS related travel advice to all of Taiwan province, China

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2002 - Meningococcal disease in the Great Lakes area (Burundi, Rwanda, United Republic of Tanzania) - Update

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Update 72 - Situation in China

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Meningococcal disease in Burkina Faso - Update 3

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Yellow fever in Guinea

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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