Usually, nothing can be done to prevent the disease.
A person with asthma may develop chronic lung irritation due to Aspergillus. In others, aspergillosis may cause permanent damage to the lungs. It can also spread throughout the body and even result in death.
Aspergillosis is not contagious from person to person. People get the infection from the environment. Most people are exposed to Aspergillus early in life and have no problems with it.