Measles
Measles clinical and global spread profile: 70 countries, 98 WHO outbreak events since 1996.
Measles · ICD-10 B05 · ICD-11 1F03 · 98 WHO events across 70 countries (1996–2025).
Top affected countries
| Country | Region | Events | % of global |
|---|---|---|---|
| Brazil | AMR | 5 | 5% |
| Mexico | AMR | 4 | 4% |
| United States of America | AMR | 4 | 4% |
| Canada | AMR | 3 | 3% |
| Kyrgyzstan | EUR | 3 | 3% |
| Chile | AMR | 3 | 3% |
| Kazakhstan | EUR | 2 | 2% |
| Russian Federation | EUR | 2 | 2% |
| Colombia | AMR | 2 | 2% |
| Germany | EUR | 2 | 2% |
| Nigeria | AFR | 2 | 2% |
| Japan | WPR | 2 | 2% |
| Serbia | EUR | 2 | 2% |
| Somalia | EMR | 2 | 2% |
| Ethiopia | AFR | 2 | 2% |
Distribution by WHO region
| Region | Events | Share |
|---|---|---|
| AMR | 26 | 27% |
| EUR | 26 | 27% |
| AFR | 15 | 15% |
| WPR | 12 | 12% |
| EMR | 10 | 10% |
| Unassigned | 5 | 5% |
| SEAR | 4 | 4% |
Annual outbreak timeline
| Year | Events | Countries |
|---|---|---|
| 2025 | 7 | 7 |
| 2023 | 7 | 7 |
| 2022 | 2 | 2 |
| 2020 | 4 | 4 |
| 2019 | 42 | 42 |
| 2018 | 2 | 2 |
| 2015 | 14 | 14 |
| 2011 | 17 | 17 |
| 2000 | 1 | 1 |
| 1997 | 1 | 1 |
| 1996 | 1 | 1 |
Peak year: 2019 (42 events).
Decade summary
| Decade | Events |
|---|---|
| 1990s | 2 |
| 2000s | 1 |
| 2010s | 75 |
| 2020s | 20 |
WHO case definition
A disease of the respiratory system, caused by an infection with Morbillivirus. This disease is characterised by a blotchy rash, fever, cough, conjunctivitis, or malaise. This disease may also present with tiny white spots with bluish-white centres inside the mouth. Transmission is by inhalation of infected respiratory secretions, airborne transmission or direct contact. Confirmation is by detection of Morbillivirus RNA or measles-specific IgM antibodies.
Countries Affected
70
Outbreak Events
98
Year Range
1996–2025
ICD-10 B05
Measles
Visualization
Global Prevalence Snapshot
Based on WHO Disease Outbreak News events (1996–2025).
Risk Level
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