A study on pollen, the main biological aeroallergens

Pollen grains as biological particles are the main source of airborne allergens and investigation about their allergenicity is very important. Pollen grains of trees, weeds and grasses are effective in increasing the seasonal allergies and cause the allergic rhinitis, allergic conjunctivitis, eczema, and gastrointestinal reactions and asthma. Recognizing the allergenic plant and allergen factors in pollen grains and establishing the annual distribution calendar of pollens in flora are high throughput strategies for reducing the allergies in susceptible people. This article investigates the different factors causing pollen allergenicity and the modality of allergic diagnosis occurrence.