In most cases, aspergillosis is caused by a type of mold called Aspergillus fumigatus. Aspergillus mold can often be found on dead leaves, compost piles and other decaying vegetable matter, stored grain, and even foods and spices. The mold spores may be carried indoors on shoes and clothing and can grow on carpeting.

Where is Aspergillus most commonly found?

Aspergillosis is caused by a fungus called aspergillus. The fungus is often found growing on dead leaves, stored grain, compost piles, or in other decaying vegetation. It can also be found on marijuana leaves.

Who usually gets Aspergillus?

Invasive aspergillosis affects people who have weakened immune systems, such as people who have had a stem cell transplant or organ transplant, are getting chemotherapy for cancer, or are taking high doses of corticosteroids. Invasive aspergillosis has been described among hospitalized patients with severe influenza.