A Rare Case of Storage Mite Anaphylaxis in Infancy

Area of Science:

• Allergy and Immunology
• Pediatric Allergy
• Food Safety

Background:

• Anaphylaxis is a severe, life-threatening allergic reaction.
• Previously tolerated foods can unexpectedly trigger anaphylaxis.
• Storage mites are a potential, often overlooked, allergen source.

Purpose of the Study:

• To report the first case of storage mite-induced anaphylaxis in an Australian infant.
• To highlight the diagnostic challenges and clinical presentation of this condition.
• To emphasize the importance of clinician recognition and preventive strategies.

Main Methods:

• Case report of an infant experiencing recurrent severe anaphylaxis.
• Diagnostic evaluation included skin prick testing to foods and aeroallergens.
• Serum-specific IgE testing was performed to identify specific allergens.
• Clinical history focused on food storage duration and reaction timing.

Main Results:

• The infant experienced two severe anaphylactic episodes linked to stored foods.
• Standard food allergy tests were negative, but sensitization to house dust mite and storage mites was confirmed.
• The patient required multiple doses of intramuscular adrenaline for each episode.
• Skin prick testing indicated sensitization to house dust mite, with serum IgE confirming storage mite sensitization.

Conclusions:

• Storage mite sensitization should be considered in infants with unexplained anaphylaxis, especially after food storage.
• Early diagnosis and avoidance of storage mites are crucial for preventing recurrent, severe allergic reactions.
• Clinician awareness is essential for timely diagnosis and management of storage mite anaphylaxis.