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[Epidemiology of allergic diseases in the metropolitan area of Monterrey].

A study was conducted in order to know whether the prevalence of allergic illnesses, in an open population, has changed in the last 10 years. For the study, 243 families from the Monterrey metropolitan area, were randomly selected, using a questionnaire. Of the total number of families studied, 95 were found to have some kind of allergic disease, 11.2% of 1207 people interviewed.