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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.

3,195
Total noticesEvery WHO Disease Outbreak News bulletin
Case total not available
Confirmed casesSum of reported illnesses
131
Countries affected
August 28, 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)

  • 25 outbreaks have been reported year to date.
  • Aug 2026 was 0% higher than the previous complete period (Jul 2026: 3).
  • The highest complete period was May 2026 (7).
  • Sep 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 Congo3
United States3
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Outbreak notices

Showing 21–40 of 3,195 notices

Global Notice Global 2026 noticeProvisional

International food safety event: Infant formula and products containing arachidonic acid oil contaminated with cereulide toxin - Multi-country

Start date
March 13, 2026
Last updated

Source: WHO

View Notice

Global Notice Global 2026 noticeProvisional

Mpox: recombinant virus with genomic elements of clades Ib and IIb – Global situation

Start date
February 14, 2026
Last updated

Source: WHO

View Notice

Global Notice Global 2026 noticeProvisional

Nipah virus infection - Bangladesh

Start date
February 6, 2026
Last updated

Source: WHO

View Notice

Global Notice Global 2026 noticeProvisional

Nipah virus disease - India

Start date
January 30, 2026
Last updated

Source: WHO

View Notice

Global Notice Global 2026 noticeProvisional

Marburg virus disease- Ethiopia

Start date
January 26, 2026
Last updated

Source: WHO

View Notice

Global Notice Global Historical noticeProvisional

Middle East respiratory syndrome coronavirus - Global update

Start date
December 24, 2025
Last updated

Source: WHO

View Notice

Global Notice Global Historical noticeProvisional

Seasonal influenza - Global situation

Start date
December 10, 2025
Last updated

Source: WHO

View Notice

Global Notice Global Historical noticeProvisional

Broader transmission of mpox due to clade Ib MPXV – Global situation

Start date
December 5, 2025
Last updated

Source: WHO

View Notice

Global Notice Global Historical noticeProvisional

Avian Influenza A(H5N5)- United States of America

Country
United States
Start date
December 5, 2025
Last updated

Source: WHO

View Notice

Global Notice Global Historical noticeProvisional

Ebola virus disease – Democratic Republic of the Congo

Start date
December 1, 2025
Last updated

Source: WHO

View Notice

Global Notice Global Historical noticeProvisional

Marburg virus disease- Ethiopia

Start date
November 21, 2025
Last updated

Source: WHO

View Notice

Global Notice Global Historical noticeProvisional

Diphtheria - African Region (AFRO)

Start date
November 21, 2025
Last updated

Source: WHO

View Notice

Global Notice Global Historical noticeProvisional

Rift Valley fever- Mauritania and Senegal

Start date
November 5, 2025
Last updated

Source: WHO

View Notice

Global Notice Global Historical noticeProvisional

Chikungunya virus disease- Global situation

Start date
October 3, 2025
Last updated

Source: WHO

View Notice

Global Notice Global Historical noticeProvisional

Nipah virus infection - Bangladesh

Start date
September 18, 2025
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Ebola virus disease – Democratic Republic of the Congo

Start date
September 5, 2025
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Cholera – Multi-country with a focus on countries experiencing current surges

Start date
August 29, 2025
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Circulating vaccine-derived poliovirus type 1- Israel

Start date
August 20, 2025
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Nipah Virus Infection - India

Start date
August 6, 2025
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Rabies - Timor-Leste

Start date
July 24, 2025
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.