Alternaria alternata is a mold that disperses spores into the air, causing allergic reactions. It grows on many plants and materials, thriving in warm, damp conditions. People with sensitivity to this mold may experience symptoms during dry, windy weather when spore counts peak....
Testing for Alternaria alternata allergy is recommended if you have allergic reactions during warm, windy conditions or after exposure to decaying vegetation and compost.
Alternaria alternata spores can be inhaled and trigger an immune response in sensitive individuals, leading to allergic symptoms.
Limit outdoor activities on windy days, use high-efficiency particulate air (HEPA) filters indoors, and remove decaying plants from around your home.