Aspergillosis
Aspergillosis is an infection or allergic reaction caused by various kinds of mold (a type of fungus). Mold is often found outdoors on plants, soil, or rotting vegetable matter. Mold can also grow indoors on household dust, food items such as ground spices, and building materials. Aspergillus fumigatus is the type of mold that is most likely to cause aspergillosis in certain people when they inhale (breathe in) its spores.

Who gets aspergillosis?
Exposure to Aspergillus is not likely to cause problems in the majority of people whose immune systems are healthy. However, people with chronic lung problems or people with weak immune systems may be at greater risk for developing the infection. People with weakened immune systems include those people taking chemotherapy or those who have had organ transplants.