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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

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Outbreak notices

Showing 41–60 of 186 notices

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

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

Update 72 - Situation in China

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Suspected Severe Acute Respiratory Syndrome (SARS) case in southern China

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Update 79 – Situation in China

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Influenza in Hong Kong, Special Administrative Region of China

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Update 76 - Situation in China, Taiwan and Hong Kong

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Influenza A(H5N1) in Hong Kong Special Administrative Region of China

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2001 - Isolation of influenza A(H5N1) virus in poultry in Hong Kong Special Administrative Region of China

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

2001 - Isolation of influenza A(H5N1) virus in poultry in Hong Kong Special Administrative Region of China

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

1999 - Influenza A(H9N2) in Hong Kong Special Administrative Region of China (SAR)

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

1999 - Influenza in China

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

1999 -Single isolation of H5N1 influenza virus in a goose, Hong Kong Special Administrative Region of China - Update

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

1999 - Influenza A(H9N2) in Hong Kong Special Administrative Region (SAR) and China - Update

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

1999- Single isolation of H5N1 influenza virus in a goose, Hong Kong Special Administrative Region of China

Start date
June 7, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

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

Start date
June 3, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Influenza A(H7N4) virus – China

Start date
June 3, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Novel Coronavirus – Japan (ex-China)

Start date
March 4, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Novel Coronavirus – Thailand (ex-China)

Start date
March 4, 2021
Last updated

Source: WHO

View Notice

Global Notice Global Historical notice

Novel Coronavirus – China

Start date
March 3, 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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