Aspergillosis is a group of diseases caused by infection or allergic reaction to Aspergillus fungus, commonly found in indoor and outdoor environments. It is caused by inhaling Aspergillus fumigatus spores that trigger immune responses ranging from mild allergic reactions to serious invasive lung infections. The Respiratory Allergy Panel is the most important test for diagnosing aspergillosis because it detects specific antibodies produced in response to Aspergillus exposure.
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Aspergillosis is caused by inhaling spores from Aspergillus fumigatus, a common fungus found in soil, decaying vegetation, compost piles, and indoor environments with poor ventilation. When you breathe in these microscopic spores, your immune system may react by producing antibodies, leading to allergic responses, or in people with weakened immune systems, the fungus can invade lung tissue and cause serious infections. The severity depends on your immune system strength and the amount of exposure to the fungal spores.
The Respiratory Allergy Panel is the most important blood test for aspergillosis because it detects specific IgE antibodies your immune system produces in response to Aspergillus fumigatus exposure. These regional panels are tailored to identify the fungal allergens most common in your geographic area, making them highly accurate for detecting allergic reactions to Aspergillus. The test measures your body's immune response to the fungus, which helps distinguish between allergic aspergillosis and other respiratory conditions with similar symptoms. Regional panels like the Respiratory Allergy Panel Region III for the Southeast or Region XVII for the Pacific Northwest provide the most relevant results based on local fungal concentrations.
You should get tested if you experience persistent respiratory symptoms like wheezing, shortness of breath, or chronic cough that doesn't improve with standard treatment, especially if you have asthma or other lung conditions. Testing is particularly important if you work in environments with high mold exposure such as farming, gardening, or construction, or if you have a weakened immune system from conditions like HIV, cancer treatment, or organ transplant. You should also consider testing if you notice worsening asthma symptoms or develop fever and chest pain alongside breathing difficulties.
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What this means
Your IgE antibodies to cat dander are moderately elevated, indicating a significant allergic sensitivity to cats. This level of sensitization commonly causes symptoms like sneezing, itchy eyes, nasal congestion, or even breathing difficulty when exposed to cats or environments where cats have been. Even if you don't own a cat, exposure can occur in homes, offices, or on clothing of cat owners.
Recommended actions
Avoid direct contact with cats and limit time in environments where cats live
Use HEPA air purifiers in your home to reduce airborne cat allergen particles
Wash hands and change clothes after visiting homes with cats
Consider discussing allergy medications or immunotherapy with your doctor if avoidance isn't practical
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