Epidemiological Study of Nasal Allergies in Medical Students.

The prevalence and factors relating to the appearance of nasal allergies were investigated, in a group of 351 medical students. The prevalence of nasal allergies in the 351 students was 39.6%. About 56% of the students were sensitized by some inhalation antigen. The primary antigens among the students who had grown up in Aomori Prefecture were house dust, mites and orchard grass.It was suggested that the appearance of nasal allergies is nearly always due to the presence of both environmental and hereditary factors.