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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

Download matching outbreaks as CSV

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
Outbreaks by disease

A bar chart of the number of matching outbreaks by disease.

Outbreaks by disease
DiseaseOutbreaks
Salmonellosis1
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Notices by country

A bar chart of the number of matching notices by country.

Notices by country
CountryNotices
United States62
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Outbreaks by disease
DiseaseOutbreaks
Salmonellosis1

Outbreak notices

Showing 21–40 of 62 notices

Global Notice Global Historical notice

2001 - Anthrax in the United States - Update 8

Country
United States
Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2001 - Anthrax in the United States - Update 5

Country
United States
Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2001 - Anthrax in the United States - Update 10

Country
United States
Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2001 - Anthrax 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

2001 - Anthrax in the United States - Update 13

Country
United States
Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2001 - Anthrax in the United States - Update 7

Country
United States
Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2001 - Anthrax in the United States (State of Florida) - Update

Country
United States
Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2001 - Anthrax in the United States - Update 11

Country
United States
Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2001 - Anthrax in the United States - Update 2

Country
United States
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

Country
United States
Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2001 - Anthrax in the United States

Country
United States
Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2001 - Anthrax in the United States - Update 15

Country
United States
Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2002 - West Nile virus in the United States

Country
United States
Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2001 - Anthrax in the United States - Update 12

Country
United States
Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2001 - Anthrax in the United States - Update 14

Country
United States
Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2001 - Anthrax in the United States - Update 3

Country
United States
Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

1999 - West Nile fever in the United States of America (update on St. Louis encephalitis)

Country
United States
Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2000 - Meningococcal disease in the United States

Country
United States
Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2000 - Acute febrile illness in the United States of America

Country
United States
Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

1999 - St. Louis encephalitis in the United States of America . Update

Country
United States
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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