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Aspergillosis is a disease of the respiratory system caused by several [[Aspergillus]] spp. A. fumigatus is the most frequently reported species in domestic animals. Commonly affected species include birds, dogs, cats, horses and cattle but the disease has been reported in many other wild and domestic species.

Aspergillosis is a disease of the respiratory system caused by several [[Aspergillus]] spp. A. fumigatus is the most frequently reported species in domestic animals. Commonly affected species include birds, dogs, cats, horses and cattle but the disease has been reported in many other wild and domestic species.

==Clinical signs==

==Clinical signs and features==

===Birds===

===Birds===

In the horse the guttural pouches are most commonly affected. Aspergillus infection may also lead to abortion.

In the horse the guttural pouches are most commonly affected. Aspergillus infection may also lead to abortion.

===Dogs, cats and sheep===

===Dogs===

Infections occur, but infrequently in these animals. The lungs and nasal cavity are most commonly affected. Dogs

Aspergillosis is a common cause of nasal disease in dogs. Young to middle aged male dogs are most commmonly affected but animals of all age and of both sexes may be affected. The disease is usually localised to the paranasal sinuses and nasal cavity but a disseminated form with granulomas and infarcts has been reported in dogs. Pulmonary and intersitital forms may also occur in cats.

**Disseminated form with granulomas and infarcts can occur in dogs

 

**Pulmonary and intersitital forms can occur in cats

 

 

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|<gallery>Image:Aspergillus in vivo.jpg|<center><p>'''Aspergillus in vivo'''</p>^{Copyright Professor Andrew N. Rycroft, BSc, PHD, C. Biol.F.I.Biol., FRCPath}</center></gallery>

|<gallery>Image:Aspergillus in vivo.jpg|<center><p>'''Aspergillus in vivo'''</p>^{Copyright Professor Andrew N. Rycroft, BSc, PHD, C. Biol.F.I.Biol., FRCPath}</center></gallery>

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*Grows on Sabauraud's Dextrose and Blood agar

*Grows on Sabauraud's Dextrose and Blood agar

[[Image:Aspergillus pneumonia of cattle.jpg|right|thumb|100px|<small><center>Aspergillus hyphae in cattle lung (Image sourced from Bristol Biomed Image Archive with permission)</center></small>]]

[[Image:Aspergillus pneumonia of cattle.jpg|right|thumb|100px|<small><center>Aspergillus hyphae in cattle lung (Image sourced from Bristol Biomed Image Archive with permission)</center></small>]]

[[Image:Aspergillosis in nasal cavity.jpg|right|thumb|100px|<small><center>Nasal aspergillosis (Image sourced from Bristol Biomed Image Archive with permission)</center></small>]]

[[Image:Aspergillosis in nasal cavity.jpg|right|thumb|100px|<small><center>Nasal aspergillosis (Image sourced from Bristol Biomed Image Archive with permission)</center></small>]]