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Outbreak notice totals

All-time counts across every WHO Disease Outbreak News bulletin in Public Health Trace.

3,195

Total noticesEvery WHO Disease Outbreak News bulletin

Case total not available

Confirmed casesSum of reported illnesses

131

Countries affected

August 28, 2026

Most recent notice

Country: Mexico ×
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Outbreaks reported by month (Year to date)

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Source: WHO public dataLast updated September 5, 2026 ET

Summary (Year to date)

25 outbreaks have been reported year to date.
Aug 2026 was 0% higher than the previous complete period (Jul 2026: 3).
The highest complete period was May 2026 (7).
Sep 2026 is incomplete and not included in the figures above.

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Notices by country

Notices by country
Country	Notices
United States	2

Outbreak notices

Global Notice Global Historical notice

Avian Influenza A(H5N1) - Mexico

Start date: April 17, 2025
Last updated: July 18, 2026 ET

Global Notice Global Historical notice

Human infection caused by avian Influenza A(H5N2)-Mexico

Start date: June 14, 2024
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Human infection caused by avian Influenza A(H5N2)- Mexico

Start date: June 5, 2024
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Outbreak of suspected fungal meningitis associated with surgical procedures performed under spinal anaesthesia – the United States of America and Mexico

Country: United States
Start date: June 1, 2023
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

1996 - Venezuelan Equine Encephalitis in Mexico

Start date: June 8, 2021
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Measles – Mexico

Start date: March 3, 2021
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Carbapenem-resistant Pseudomonas aeruginosa infection – Mexico

Start date: March 5, 2019
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Zika virus disease – Mexico

Start date: December 3, 2015
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Cholera in Mexico

Start date: October 19, 2013
Last updated: July 21, 2026 ET

Global Notice Global Historical notice

Influenza-like illness in the United States and Mexico

Country: United States
Start date: April 24, 2009
Last updated: July 21, 2026 ET

Data last updated: September 5, 2026 ET

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