Aspergillosis is not generally considered an infection that passes from dog to dog. Dogs usually become infected by sniffing up the fungal spores that live in damp and decaying vegetable matter.
You may be contagious for up to 8 weeks since your body will continue to shed the virus. However, the germs aren't as strong the longer that you're in recovery....
Aspergillosis is caused by a type of fungus called Aspergillosis fumigatus. This lives in decaying vegetation and causes infection when sniffed up into the dog's nasal cavity.
Treatment is complex since oral medications alone have a poor success rate. Specialist treatment where antifungals are instilled into the nasal chambers works best, as does surgical removal of the...