Barley smut, associated with the fungus Ustilago nuda, affects barley crops. Its exposure to barley may lead to sensitization on inhalation or physical contact, causing in some individuals type 1 hypersensitivity reactions, manifesting as rhinitis, rhinoconjunctivitis, and asthma. IgE antibody estimation helps healthcare providers identify susceptible individuals and guide allergen-specific immunotherapy.

Important note: Minimum volume is 1 mL and 0.5 mL for every additional allergen.