What age group is at the highest risk for measles?

Updated: Jun 06, 2019
  • Author: Selina SP Chen, MD, MPH; Chief Editor: Russell W Steele, MD  more...
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Answer

Although measles is historically a disease of childhood, infection can occur in unvaccinated or partially vaccinated individuals of any age or in those with compromised immunity.

Unvaccinated young children are at the highest risk. Age-specific attack rates may be highest in susceptible infants younger than 12 months, school-aged children, or young adults, depending on local immunization practices and incidence of the disease. Complications such as otitis media, bronchopneumonia, laryngotracheobronchitis (ie, croup), and diarrhea are more common in young children.


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