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
 |
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
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57
:
614-619
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