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Observium › Measles

Measles Measles morbillivirus

Measles is a highly contagious, vaccine-preventable infectious disease caused by measles virus. Other names include morbilli, rubeola, 9-day measles, red measles, and English measles.

137WHO outbreaks
8,705,468Cases reported
6053Deaths
10Countries affected

Countries with active outbreaks

  • Italy — 8 events, 42 deaths
  • Brazil — 7 events, 413,893 cases, 15 deaths
  • United States — 6 events, 414,187 cases, 15 deaths
  • Canada — 4 events, 501 cases, 15 deaths
  • Mexico — 4 events, 501 cases, 15 deaths
  • Chile — 4 events, 154 cases, 15 deaths
  • Russia — 4 events, 413,408 cases, 42 deaths
  • Germany — 4 events, 125 cases, 42 deaths
  • Argentina — 3 events, 413 cases, 15 deaths
  • Thailand — 3 events, 413,676 cases, 381 deaths

Recent events

  • 2026-04-23T12:58:07Z · Bangladesh — Measles - Bangladesh · 8263 cases
  • 2025-05-13T18:00:00Z · Morocco — Measles - Morocco
  • 2025-04-28T18:00:00Z · Argentina — Measles – Region of the Americas · 205 cases
  • 2025-04-28T18:00:00Z · Thailand — Measles – Region of the Americas · 205 cases
  • 2025-04-28T18:00:00Z · Brazil — Measles – Region of the Americas · 205 cases
  • 2025-04-28T18:00:00Z · Canada — Measles – Region of the Americas · 205 cases
  • 2025-04-28T18:00:00Z · United Kingdom — Measles – Region of the Americas · 205 cases
  • 2025-04-28T18:00:00Z · Mexico — Measles – Region of the Americas · 205 cases

Frequently asked questions

What is Measles?

Measles is an infectious disease caused by Measles morbillivirus. Measles is a highly contagious, vaccine-preventable infectious disease caused by measles virus. Other names include morbilli, rubeola, 9-day measles, red measles, and English measles.

How is Measles transmitted?

The main transmission routes of Measles are: airborne (extremely contagious).

Where is Measles endemic?

Measles is endemic in the following regions: Worldwide, surge 2024-26 in unvaccinated.

What is the case fatality rate of Measles?

The typical case fatality rate (CFR) of Measles is 1–15 (low resource)%.

How many active Measles outbreaks worldwide?

Currently 137 active WHO outbreaks reported, with 8705468 cases and 6053 deaths in the surveillance window.

Official sources

Observium aggregates real-time data from authoritative sources: WHO Disease Outbreak News, CDC NNDSS, ECDC, Europe PMC, Italian Ministry of Health, ISS, UKHSA, RIVM, RKI, BAG, ISCIII, NICD, and 20+ national sources plus Google News.

View all sources →