Global Notice Global Historical notice
Meningococcal disease in Chad - update 2
- Start date
- January 28, 2005
- 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
Meningococcal disease in the Philippines - update 2
- Start date
- January 28, 2005
- Last updated
Global Notice Global Historical notice
Avian influenza – situation in Viet Nam – update 7
- Start date
- January 28, 2005
- Last updated
Global Notice Global Historical notice
Avian influenza – situation in Viet Nam – update 6
- Start date
- January 26, 2005
- Last updated
Global Notice Global Historical notice
Avian influenza – situation in Viet Nam – update 5
- Start date
- January 21, 2005
- Last updated
Global Notice Global Historical notice
Meningococcal disease in Chad - update
- Start date
- January 20, 2005
- Last updated
Global Notice Global Historical notice
Avian influenza – situation in Viet Nam – update 4
- Start date
- January 19, 2005
- Last updated
Global Notice Global Historical notice
Meningococcal disease in the Philippines - update
- Start date
- January 19, 2005
- Last updated
Global Notice Global Historical notice
Avian influenza – situation in Viet Nam – update 3
- Start date
- January 14, 2005
- Last updated
Global Notice Global Historical notice
Avian influenza – situation in Viet Nam - update 2
- Start date
- January 13, 2005
- Last updated
Global Notice Global Historical notice
Meningococcal disease in Chad
- Start date
- January 11, 2005
- Last updated
Global Notice Global Historical notice
Meningococcemia-like illness in the Philippines
- Start date
- January 11, 2005
- Last updated
Global Notice Global Historical notice
Yellow fever in Guinea
- Start date
- January 7, 2005
- Last updated
Global Notice Global Historical notice
Avian influenza – situation in Viet Nam - update
- Start date
- January 6, 2005
- Last updated
Global Notice Global Historical notice
Avian influenza – situation in Viet Nam
- Start date
- December 30, 2004
- Last updated
Global Notice Global Historical notice
Typhoid fever in Democratic Republic of the Congo
- Start date
- December 15, 2004
- Last updated
Global Notice Global Historical notice
Cholera in Nigeria
- Start date
- December 3, 2004
- Last updated
Global Notice Global Historical notice
Yellow fever in Burkina Faso
- Start date
- November 24, 2004
- Last updated
Global Notice Global Historical notice
Cholera in Senegal - update
- Start date
- November 12, 2004
- Last updated
Global Notice Global Historical notice
Cholera in Senegal
- Start date
- November 2, 2004
- 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.
