Effect of airborne allergens on the respiratory allergic diseases

The prevalence of allergic diseases is increasing year by year at worldwide and has reached 25%-40% in the developed countries. Allergy can affect life quality seriously,cause huge economic losses with allergic patients,which has become a serious public health problem. Airborne allergens such as pollen grains, fungal spores,Dermatophagoidinae,animal waste and so on are important causes of allergic diseases,its concentration correlates with the severity of allergic disease symptoms significantly. Key words: Airborne allergens; Respiratory tract; Allergic diseases