Occupational asthma to predatory mites used for pest control |
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This is probably the first bronchial challenge positive report to Amblyseius mites, but previous studies have shown sensitisation and positive nasal challenges in greenhouse workers
| Agent |
Amblyseius cucumeris and Amblyseius californicus |
| Job |
Market gardener |
| Specific IgE |
positive |
| Skin prick test |
positive (Amblyseius cucumeris only) |
| Non-specific reactivity |
not done |
| Serial Peak Flow |
not done |
| BAL |
not done |
| FENO |
not done |
| Basophil histamine release |
Not done |
| Specific Challenge |
Immediate reaction to tomatoe plant debris, positive nasal challenge to mixed mites including Amblyseius cucumeris and Amblyseius californicus, T urticae and H miles (last 2 RAST negative) |
| Follow-up |
symptoms and PFT resolved with terbulaline and antihistamines (probably refers to challenge reaction only) |
References
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Giséle CM, Groenewoud MD, de Graaf, van Oorschot–van NesAJO, de ong AJ, Vermeulen AM, van Toorenenbergen AW, Burdorf A, de Groot H, van Wijk RG,
Prevalence of sensitization to the predatory mite Amblyseius cucumeris as a new occupational allergen in horticulture,
Allergy,
2002;57:614-619,
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