General overview of fungal allergic asthma

Asthma is a complicated disorder, whose prevalence has increased over the past few decades. Asthma is characterized by infiltration of inflammatory leukocytes along with enhanced proinflammatory cytokines and chemokines. Fungi are now far more widely being considered as the dominant extrinsic trigger for asthma. Fungi are linked to the severity of asthma in many ways. Some differences between studies can be partly attributed to difficulties in the standardization of mould allergen extracts for skin-testing techniques. Allergy to fungi is associated with increased asthma symptoms and severity, increased asthma risk, and even death. These fungi are zoonosis; pet animals could be the main source of pathogenic fungi and infection and treatment of pets and periodic checking with a veterinarian could help avoid fungi-allergic asthma. Attention therefore needs to be paid to fungi infection in allergic reactions, especially in asthma.