Measles epidemiology in Catalonia (Spain): implications for a regional vaccination programme

Background To analyse progress in measles control it is recommended that im munization programmes be evaluated by means of specific epidemiological dis ease surveillance. The aim of the study was to analyse a series of measles cases in Catalonia in the light of vaccination records. Methods Cases were detected by means of the epidemiological surveillance sy stem and then surveyed for information on: age, sex, clinical symptoms, lab oratory confirmation, record of vaccination, place of infection and possibl e outbreak-related links. The relationship between 'record of vaccination' and the remaining variables was determined using the adjusted odds ratio (O R) and its 95% confidence interval (CI). Results The epidemiological survey confirmed that 82.2% of patients (171/20 8) fulfilled the case criteria. In the multivariate analysis, lack of recor d of vaccination was associated with age groups <5 years (OR = 4.0; 95% CI : 1.4-11.8) and >14 years (OR = 19.2; 95% CI : 5.1-220.5). Conclusions Improvement in vaccination coverage at 15 months and the introd uction of vaccination-status monitoring at school-entry age and among those aged >14 years on entry into the job market, university or military servic e could contribute to the elimination of measles.