Respiratory allergy in apprentice bakers: do occupational allergies follow the allergic march?

This prospective study describes the incidence, risk factors and natural history of occupational respiratory allergy in apprentice bakers.Two hundred and eighty-seven apprentice bakers were examined using a questionnaire, skin prick tests (SPTs) to common and occupational allergens, evaluation of total serum IgE level and specific anti-flour and alpha-amylase IgE, before, 1 year and 2 years after the onset of vocational training. To diagnose...