[Mold hypersensitivity in children with frequent respiratory tract infection and prolonged cough attacks]

Area of Science:

• Pediatric Allergy and Immunology
• Environmental Health
• Respiratory Medicine

Background:

• Frequent respiratory tract infections in children are a significant health concern.
• Damp housing environments are associated with increased allergen exposure.
• Atopy development is influenced by genetic and environmental factors.

Purpose of the Study:

• To investigate sensitivities to pollen, mites, and molds in children with recurrent respiratory infections.
• To evaluate the impact of parental separation, education, ethnicity, siblings, and atopy status on atopy development.
• To correlate allergen sensitivities with specific respiratory tract involvement.

Main Methods:

• A cohort of 63 children with at least six respiratory tract infections annually and mold exposure were enrolled.
• Skin prick testing (SPT) was performed to assess sensitivities to pollen, mites, and molds.
• Patients were categorized based on upper respiratory tract (URT) or lower respiratory tract (LRT) involvement.

Main Results:

• One-third of the children tested positive via SPT, with a higher incidence of physician-diagnosed parental allergies.
• Mite sensitivity correlated with both URT and LRT findings.
• Pollen sensitivity was predominantly linked to URT symptoms, while mold sensitivity was associated with LRT findings.

Conclusions:

• Atopic children exposed to molds may exhibit more frequent LRT symptoms.
• Mold exposure can induce LRT inflammation independently of immunoglobulin E-mediated sensitization.
• Environmental factors like damp housing play a crucial role in pediatric respiratory health and atopy.