Global Notice Global Historical notice
Polio in Tajikistan, first importation since Europe certified polio-free
- Start date
- April 23, 2010
- 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
Avian influenza – situation in Viet Nam - update 11
- Start date
- April 21, 2010
- Last updated
Global Notice Global Historical notice
Avian influenza - situation in Egypt - update 34
- Start date
- April 9, 2010
- Last updated
Global Notice Global Historical notice
Meningococcal disease in Chad
- Start date
- April 1, 2010
- Last updated
Global Notice Global Historical notice
Avian influenza - situation in Egypt - update 33
- Start date
- March 30, 2010
- Last updated
Global Notice Global Historical notice
Rift Valley fever in South Africa
- Start date
- March 30, 2010
- Last updated
Global Notice Global Historical notice
Avian influenza – situation in Viet Nam - update 10
- Start date
- March 29, 2010
- Last updated
Global Notice Global Historical notice
Avian influenza – situation in Viet Nam - update 9
- Start date
- March 16, 2010
- Last updated
Global Notice Global Historical notice
Avian influenza - situation in Egypt - update 32
- Start date
- March 12, 2010
- Last updated
Global Notice Global Historical notice
Avian influenza – situation in Viet Nam - update 8
- Start date
- March 4, 2010
- Last updated
Global Notice Global Historical notice
Yellow fever in Cameroon
- Start date
- February 24, 2010
- Last updated
Global Notice Global Historical notice
Avian influenza - situation in Egypt - update 30
- Start date
- February 17, 2010
- Last updated
Global Notice Global Historical notice
Avian influenza – situation in Indonesia
- Start date
- February 12, 2010
- Last updated
Global Notice Global Historical notice
Avian influenza - situation in Egypt - update 29
- Start date
- February 10, 2010
- Last updated
Global Notice Global Historical notice
Avian influenza - situation in Egypt - update 28
- Start date
- February 8, 2010
- Last updated
Global Notice Global Historical notice
Avian influenza - situation in Egypt - update 27
- Start date
- January 28, 2010
- Last updated
Global Notice Global Historical notice
Yellow fever in Guinea
- Start date
- January 12, 2010
- Last updated
Global Notice Global Historical notice
Yellow fever - Côte d'Ivoire
- Start date
- January 8, 2010
- Last updated
Global Notice Global Historical notice
Avian influenza - situation in Egypt - update 26
- Start date
- December 21, 2009
- Last updated
Global Notice Global Historical notice
Avian influenza – situation in Cambodia
- Start date
- December 18, 2009
- 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.
