Global Notice Global Historical notice
2000 - Cholera in Somalia
- Start date
- June 7, 2021
- 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.
3,200
Total noticesEvery WHO Disease Outbreak News bulletinCase total not available
Confirmed casesSum of reported illnesses131
Countries affectedOctober 15, 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 | 6 |
| United States | 2 |
| Saudi Arabia | 1 |
| Russia | 1 |
Outbreak notices
Global Notice Global Historical notice
2000 - Acute haemorrhagic fever syndrome in Afghanistan
- Start date
- June 7, 2021
- Last updated
Global Notice Global Historical notice
1999 - Hendra-like virus (Nipah virus) in Malaysia - Update
- Start date
- June 7, 2021
- Last updated
Global Notice Global Historical notice
1999 - Sylvatic yellow fever in South America
- Start date
- June 7, 2021
- Last updated
Global Notice Global Historical notice
1999 - Plague in Namibia
- Start date
- June 7, 2021
- Last updated
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
Global Notice Global Historical notice
2000 - Cholera in Afghanistan
- Start date
- June 7, 2021
- Last updated
Global Notice Global Historical notice
2000 - Imported case of Lassa fever in Germany - Update
- Start date
- June 7, 2021
- Last updated
Global Notice Global Historical notice
2000 - Meningococcal disease in Ethiopia - Update
- Start date
- June 7, 2021
- Last updated
Global Notice Global Historical notice
1999 - Meningococcal meningitis in Guinea-Bissau
- Start date
- June 7, 2021
- Last updated
Global Notice Global Historical notice
2000 - Legionnaires' disease in Australia
- Start date
- June 7, 2021
- Last updated
Global Notice Global Historical notice
1999 - Diarrhoeal disease/cholera in Congo
- Start date
- June 7, 2021
- Last updated
Global Notice Global Historical notice
1999- Cholera in Somalia
- Start date
- June 7, 2021
- Last updated
Global Notice Global Historical notice
2000 - Meningococcal disease in Hungary
- Start date
- June 7, 2021
- Last updated
Global Notice Global Historical notice
1999 - Janpanese Encephalitis and Hendra-like Viurs in Malaysia
- Start date
- June 7, 2021
- Last updated
Global Notice Global Historical notice
1999 - Yellow fever in Bolivia
- Start date
- June 7, 2021
- Last updated
Global Notice Global Historical notice
2000 - Measles in Ireland
- Start date
- June 7, 2021
- Last updated
Global Notice Global Historical notice
Pandemic (H1N1) 2009 - update 63
- Start date
- June 4, 2021
- Last updated
Global Notice Global Historical notice
Pandemic (H1N1) 2009 - update 61
- Start date
- June 4, 2021
- Last updated
Global Notice Global Historical notice
Influenza A(H1N1) - update 40
- Start date
- June 4, 2021
- 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.
