Pollen grains help the plant to reproduce they are not harmful but if they are inhaled they cause allergy symptoms. Pollen grains are transported by air and hence they may be inhaled. It causes allergy and respiratory infections.
Related Journals of Pollen Allergy
Journal of Allergy & Therapy
Dermatitis Journal, Immunology Journal, Immunotherapy Journal, Pulmonary Journal,Inflammation and Allergy - Drug Targets, International Archives of Allergy and Immunology, International Forum of Allergy and Rhinology, Iranian Journal of Allergy, Asthma and Immunology, Italian Journal of Allergy and Clinical Immunology.