The Spanish Society of Allergology predicts an intense Spring for those allergic to grass pollen in the center and southwest of the peninsula. Climate change is affecting the dispersion, quantity and quality of allergens, as well as the distribution and severity of allergic diseases.

In areas of intense pollination, respiratory diseases, asthma, allergic rhinitis and conjunctivitis will increase. The president of the SEAIC Clinical Aerobiology Committee, Juan José Zapata, has reported that this year will be worse than 2023.