Commonly found in outdoor air. One of the most important of the fungal allergen sources. Type I (hay fever & asthma) and Type III (hypersensitivity pneumonitis) allergens. Occasionally causes phaeohyphomycosis most commonly in subcutaneous tissue. Majority of infections reported from persons with underlying disease or in those taking immunosuppressive drugs.
A common saprobe found on decaying wood, decaying plants, food, spoil and outdoor air. Some species are plant pathogens. Indoors, it can be found in house dust, carpets, damp areas around showers and windows frames and anywhere condensation occurs. Because of its abundance and ubiquity, Alternaria is one of the most important fungal allergens and is recognized as the chief fungal cause of hay fever. Infection is extremely rare.
common indoor mold, not thought to be a toxin- former, but can cause allergy symptoms
Any one of a genus of fungi that cause fruit and vegetable blight, mould, or rot.
sp. Aw: 0.89. Conidia dimensions: 18–83 x 7–18 microns. A very common allergen with an IgE mediated response. It is often found in carpets, textiles and on horizontal surfaces in building interiors. Often found on window frames. Outdoors it may be isolated from samples of soil, seeds and plants. It is commonly found in outdoor samples. The large spore size (20–200 microns in length and 7–18 microns in size) suggests that the spores from these fungi will be deposited in the nose, mouth and upper respiratory tract. It may be related to bakers' asthma. It has been associated with hypersensitivity pneumonitis. The species Alternaria alternata is capable of producing tenuazonic acid and other toxic metabolites, which may be associated with disease in humans or animals. Common cause of extrinsic asthma (immediate-type hypersensitivity: type I). Acute symptoms include edema and bronchiospasms; chronic cases may develop pulmonary emphysema.
(all-tur-nair'-ee-uh) – common allergen / contaminant / opportunistic pathogen, one of the most common molds found world wide in soil and on plants and can commonly can be found indoors (frequently appearing black on window frames). It is an important airborne allergen and common agent for hay fever, asthma, and other allergy related symptoms
Alternaria is a genus of ascomycete fungi. Alternaria species are known as major plant pathogens. They are also common allergens in humans, growing indoors and causing hay fever or hypersensitivity reactions that sometimes lead to asthma.