Aspergillosis (often being used interchangeably with ’fungal rhinitis’) is an infection, growth, or allergic response caused by an opportunistic pathogen called Aspergillus fungus. This fungus grows on compost piles, stored grains, dead leaves, or other decomposing vegetation.
The Aspergillus species includes more than 180 types of lacy, fluffy molds that occur widely indoor and outdoor environments.
Viewed under the microscope, Aspergillus looks like a fine-looking flower. The fungus sheds microscopic spores (called conidia) that float in the air to infect a host when inhaled or colonizing organic matter.
Although most the molds are harmless, a few can systemic problems (affecting many different body systems) for people or pets with asthma, underlying lung disease, or a weakened immune system.
There are two common types of canine Aspergillus infection:
- Nasal (most common form – usually caused by Aspergillus fumigatus)
- Systemic (travels to other organs via the bloodstream- caused by Aspergillus terreus)
The recently discovered Aspergillus Felis attacks an already highly compromised immune system