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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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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 Congo7
United States2
Saudi Arabia1
Russia1
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Outbreak notices

Showing 2,101–2,120 of 3,201 notices

Global Notice Global Historical notice

Middle East respiratory syndrome coronavirus - Philippines

Start date
February 13, 2015
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Influenza A(H5N6) virus – China

Start date
February 12, 2015
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Middle East respiratory syndrome coronavirus – Saudi Arabia

Start date
February 11, 2015
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Middle East respiratory syndrome coronavirus – Qatar

Start date
February 11, 2015
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Middle East respiratory syndrome coronavirus – United Arab Emirates

Start date
February 11, 2015
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Influenza A(H7N9) virus – China

Start date
February 8, 2015
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Middle East respiratory syndrome coronavirus – Saudi Arabia

Start date
February 3, 2015
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Influenza A(H7N9) virus – Canada

Start date
February 1, 2015
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Influenza A(H7N9) virus – China

Start date
January 27, 2015
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Middle East respiratory syndrome coronavirus – Oman

Start date
January 23, 2015
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Middle East respiratory syndrome coronavirus – Saudi Arabia

Start date
January 20, 2015
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Influenza A(H7N9) virus – China

Start date
January 19, 2015
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Middle East respiratory syndrome coronavirus – Oman

Start date
January 16, 2015
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Middle East respiratory syndrome coronavirus – Saudi Arabia

Start date
January 15, 2015
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Middle East respiratory syndrome coronavirus – Jordan

Start date
January 5, 2015
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Ebola virus disease – United Kingdom

Start date
December 30, 2014
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Human infection with avian influenza A(H7N9) virus – China

Start date
December 30, 2014
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Human infection with avian influenza A(H5N6) virus – China

Start date
December 28, 2014
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Middle East respiratory syndrome coronavirus (MERS-CoV) – Saudi Arabia

Start date
December 26, 2014
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Human infection with avian influenza A(H7N9) virus – China

Start date
December 24, 2014
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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