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Measles outbreak in an occupational setting: challenges to regain elimination status for Spain, 14 January to 11

Esteban Aznar1,2, Aurora Fernández-García3,4, Noemí López-Perea4,5

  • 1Coordinating Centre for Health Alerts and Emergencies, Directorate General of Public Health, Ministry of Health, Madrid, Spain.

Euro Surveillance : Bulletin Europeen Sur Les Maladies Transmissibles = European Communicable Disease Bulletin
|June 19, 2026
PubMed

Insights

A measles outbreak in Alicante, Spain, occurred shortly after the region was declared to have endemic transmission. Understanding this outbreak is key to regaining measles elimination status.

Area of Science:

  • Public Health
  • Epidemiology
  • Infectious Disease Control

Background:

  • The European Region of the World Health Organization (WHO) declared the re-establishment of endemic measles transmission in Spain in January 2026.
  • Measles elimination requires robust surveillance and rapid response to prevent resurgence.

Purpose of the Study:

  • To analyze the key factors contributing to a measles outbreak in Alicante, Spain.
  • To identify challenges and potential strategies for regaining measles transmission control and elimination status.

Main Methods:

  • Retrospective analysis of an office building-linked measles outbreak in Alicante.
  • Epidemiological data collection including case demographics (age, sex) and outbreak context.

Main Results:

  • An outbreak of 34 measles cases (median age 44 years; 23 women, 11 men) occurred in Alicante.
  • The outbreak was linked to an office building, highlighting potential transmission settings.

Conclusions:

  • The Alicante measles outbreak underscores the challenges in maintaining elimination status after re-establishment of endemic transmission.
  • Identifying outbreak drivers is crucial for developing effective control measures to re-achieve measles elimination in Spain.
Keywords:
EliminationMeaslesOccupational settingOutbreakSerology

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