Global Notice Global Historical notice
Human infection with influenza A(H7N9) virus in China - update
- Start date
- April 6, 2013
- Last updated
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 bulletinCase total not available
Confirmed casesSum of reported illnesses131
Countries affectedOctober 23, 2026
Most recent noticeDownload 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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A chart of outbreaks grouped by month.
Download CSVSummary (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.
A bar chart of the number of matching notices by country.
| Country | Notices |
|---|---|
| Democratic Republic of the Congo | 7 |
| United States | 2 |
| Saudi Arabia | 1 |
| Russia | 1 |
Outbreak notices
Global Notice Global Historical notice
Human infection with influenza A(H7N9) virus in China - update
- Start date
- April 5, 2013
- Last updated
Global Notice Global Historical notice
Human infection with influenza A(H7N9) virus in China - update
- Start date
- April 4, 2013
- Last updated
Global Notice Global Historical notice
Human infection with influenza A(H7N9) virus in China – update
- Start date
- April 3, 2013
- Last updated
Global Notice Global Historical notice
Human infection with influenza A(H7N9) virus in China
- Start date
- April 1, 2013
- Last updated
Global Notice Global Historical notice
Novel coronavirus infection - update
- Start date
- March 26, 2013
- Last updated
Global Notice Global Historical notice
Novel coronavirus infection - update
- Start date
- March 23, 2013
- Last updated
Global Notice Global Historical notice
Novel coronavirus infection - update
- Start date
- March 12, 2013
- Last updated
Global Notice Global Historical notice
Novel coronavirus infection - update
- Start date
- March 6, 2013
- Last updated
Global Notice Global Historical notice
Novel coronavirus infection - update
- Start date
- February 21, 2013
- Last updated
Global Notice Global Historical notice
Novel coronavirus infection – update
- Start date
- February 16, 2013
- Last updated
Global Notice Global Historical notice
Yellow fever in Chad
- Start date
- February 14, 2013
- Last updated
Global Notice Global Historical notice
Novel coronavirus infection – update
- Start date
- February 13, 2013
- Last updated
Global Notice Global Historical notice
Polio in Niger
- Start date
- February 12, 2013
- Last updated
Global Notice Global Historical notice
Novel coronavirus infection – update
- Start date
- February 11, 2013
- Last updated
Global Notice Global Historical notice
Avian influenza – situation in Cambodia – update
- Start date
- February 1, 2013
- Last updated
Global Notice Global Historical notice
Yellow fever in the Republic of Congo
- Start date
- December 12, 2012
- Last updated
Global Notice Global Historical notice
Yellow fever in Sudan - update
- Start date
- December 6, 2012
- Last updated
Global Notice Global Historical notice
Ebola in Uganda - update
- Start date
- November 30, 2012
- Last updated
Global Notice Global Historical notice
Marburg haemorrhagic fever in Uganda - update
- Start date
- November 23, 2012
- Last updated
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.
