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Updated: Mar 11, 2026

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Occupational allergy caused by Peruvian lily (Alstroemeria)
Summary
This study reports the first case of occupational allergy to Alstroemeria (Peruvian lily) in a florist. Allergy skin testing confirmed a Type I allergic reaction, highlighting potential workplace hazards.
Area of Science:
- Allergy and Immunology
- Occupational Health
Background:
- Allergic contact dermatitis to Alstroemeria is documented.
- Occupational allergy to Alstroemeria has not been previously reported.
Observation:
- A florist presented with throat tightness, allergic rhinoconjunctivitis, urticaria, and facial angioedema after handling Alstroemeria.
- Symptoms were attributed to occupational exposure to the flower.
Findings:
- Allergy skin testing showed a positive response to Alstroemeria.
- A challenge test confirmed a Type I allergic reaction with conjunctival injection, nasal congestion, and cough.
- Skin testing was negative for other flower extracts like Stargazer lily.
Implications:
- This case represents the first reported instance of Type I allergy to Alstroemeria.
- In-office allergy skin testing and challenge tests are effective for diagnosing plant-related allergies.
- Highlights the need for awareness of occupational allergies in florists handling Alstroemeria.
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