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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 bulletin

Case total not available

Confirmed casesSum of reported illnesses

131

Countries affected

October 23, 2026

Most recent notice

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Outbreaks reported by month (Year to date)

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Source: WHO public dataLast updated October 24, 2026 ET

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.

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No disease breakdown is available for these filters.

Notices by country

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

Middle East respiratory syndrome coronavirus (MERS-CoV) - update

Start date: June 7, 2013
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Meningococcal disease: 2013 epidemic season in the African Meningitis Belt

Start date: June 6, 2013
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Middle East respiratory syndrome coronavirus (MERS-CoV) - update

Start date: June 5, 2013
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Poliovirus detected from environmental samples in Israel

Start date: June 3, 2013
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Middle East respiratory syndrome coronavirus (MERS-CoV) - update

Start date: June 2, 2013
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Middle East respiratory syndrome coronavirus (MERS-CoV) - update

Start date: June 1, 2013
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Middle East respiratory syndrome coronavirus (MERS-CoV) - update

Start date: May 31, 2013
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Middle East respiratory syndrome- coronavirus - update

Start date: May 29, 2013
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Novel coronavirus infection - update (Middle East respiratory syndrome- coronavirus)

Start date: May 23, 2013
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Novel coronavirus infection - update

Start date: May 22, 2013
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Novel coronavirus infection - update

Start date: May 18, 2013
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

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

Start date: May 17, 2013
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Novel coronavirus infection - update

Start date: May 15, 2013
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Novel coronavirus infection - update

Start date: May 14, 2013
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Novel coronavirus infection - update

Start date: May 12, 2013
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Wild poliovirus in Somalia

Start date: May 11, 2013
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Novel coronavirus infection - update

Start date: May 9, 2013
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Novel coronavirus infection - update

Start date: May 8, 2013
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

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

Start date: May 7, 2013
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Novel coronavirus infection - update

Start date: May 6, 2013
Last updated: July 21, 2026 ET

Data last updated: October 24, 2026 ET

Outbreak investigations may be ongoing; case counts, hospitalizations, and deaths are updated by CDC as investigations continue. Read the full medical disclaimer.