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Deer ked-induced occupational allergic rhinoconjunctivitis.
Arja Laukkanen1, Pirkko Ruoppi, Soili Mäkinen-Kiljunen
1Department of Dermatology, Kuopio University Hospital, Kuopio, Finland. arja.laukkanen@kuh.fi
Summary
Deer keds can cause allergic reactions. This study confirms occupational IgE-mediated rhinoconjunctival allergy to deer ked, previously undescribed.
Area of Science:
- Immunology
- Allergology
- Occupational Health
Background:
- Deer keds (elk flies) are ectoparasites that infest various mammals.
- Their role in causing respiratory or conjunctival sensitization in humans has not been previously documented.
Observation:
- A case of a patient experiencing allergic rhinoconjunctivitis following occupational exposure to deer keds is presented.
- Symptoms included nasal and conjunctival reactions upon exposure.
Findings:
- Skin prick testing (SPT), nasal provocation testing (NPT), and conjunctival provocation testing (CPT) were positive for deer ked.
- Laboratory analyses confirmed deer ked-specific IgE antibodies in serum using ImmunoSpot and radioallergosorbent test assays.
- Immunoblotting identified specific IgE-binding fractions to deer ked allergens.
Implications:
- This study confirms occupational IgE-mediated rhinoconjunctival allergy to deer ked.
- Highlights the potential for deer keds to act as allergens in occupational settings.
- Suggests the need for awareness and diagnostic considerations for deer ked allergy in at-risk professions.