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Published on: November 4, 2010
[Measles outbreak in Tormaleo (Asturias)]
I Cortina Martínez1, R Hernández Mejía, J Fernández Rodríguez
1Area de Medicina Preventiva y Salud Pública, Dpto. de Medicina, Facultad de Medicina, Universidad de Oviedo, Asturias.
Summary
An unexpected measles outbreak in Tormaleo revealed high vaccine effectiveness. The study highlights the significantly higher risk of measles infection for unvaccinated children.
Area of Science:
- Epidemiology
- Vaccinology
Background:
- Investigated an unusually severe measles outbreak in Tormaleo.
- Focused on a high proportion of cases occurring in older children.
Purpose of the Study:
- To understand the measles outbreak dynamics in Tormaleo.
- To evaluate the effectiveness of the measles vaccine in this population.
Main Methods:
- Conducted a retrospective cohort study after the epidemic.
- Identified unvaccinated children as the at-risk group and vaccinated children as the protected group.
- Analyzed clinical diagnoses in 92 children (41 males, 51 females) with 36 measles cases.
Main Results:
- Highest measles incidence observed in children aged 12-14 years.
- Incidence rates: 84% in unvaccinated, 15% in vaccinated children.
- Calculated global measles vaccine effectiveness at 82%.
Conclusions:
- The measles vaccine demonstrated significant effectiveness, consistent with other research.
- Unvaccinated individuals faced an extremely high risk of measles infection during the outbreak.
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