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BFL is caused by an immune response to inhaled allergens from birds, [3] which induce a type III hypersensitivity reaction through the formation of immune complexes within the lung parenchyma. [5] This may be the dry dust of droppings, or feathers. These antigens can come from any bird. [1] BFL may be caused by allergens from pigeons.
Hypersensitivity pneumonitis (HP) or extrinsic allergic alveolitis (EAA) is a syndrome caused by the repetitive inhalation of antigens from the environment in susceptible or sensitized people. [1] [2] Common antigens include molds, bacteria, bird droppings, bird feathers, agricultural dusts, bioaerosols and chemicals from paints or plastics. [3]
Histoplasmosis is a fungal infection caused by Histoplasma capsulatum. [2] [3] Symptoms of this infection vary greatly, but the disease affects primarily the lungs. [4] Occasionally, other organs are affected; called disseminated histoplasmosis, it can be fatal if left untreated.
There are two primary types of dust exposure in agriculture: inorganic and organic. Often the cause of allergy illnesses like asthma, organic dusts come from both plant and animal sources. Inorganic dust illnesses are non-allergic lung reactions that originate in the soil. [4] Asthma-like symptoms are linked to inorganic dust syndrome.
Psittacosis—also known as parrot fever, and ornithosis—is a zoonotic infectious disease in humans caused by a bacterium called Chlamydia psittaci and contracted from infected parrots, such as macaws, cockatiels, and budgerigars, and from pigeons, sparrows, ducks, hens, gulls and many other species of birds. The incidence of infection in ...
Fungal meningitis may be caused by the following (and also other) types of fungi: [1] [2] [3] Candida - C. albicans is the most common Candida species that causes infections of the central nervous system. Coccidioides - it is endemic to southwestern United States and Mexico. A third of patients presenting with disseminated coccidioidomycosis ...
Histoplasma capsulatum is a species of dimorphic fungus.Its sexual form is called Ajellomyces capsulatus.It can cause pulmonary and disseminated histoplasmosis.. Histoplasma capsulatum is "distributed worldwide, except in Antarctica, but most often associated with river valleys" [1] and occurs chiefly in the "Central and Eastern United States" [2] followed by "Central and South America, and ...
Cryptococcosis is also seen in cats and occasionally dogs. It is the most common deep fungal disease in cats, usually leading to chronic infection of the nose and sinuses, and skin ulcers. Cats may develop a bump over the bridge of the nose from local tissue inflammation. It can be associated with FeLV infection in cats. Cryptococcosis is most ...