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occupational asthma due to chamomile tea dust (new cause)

occupational asthma due to chamomile tea dust (new cause)
Agent Chamomile tea dust (Matricaria chamomilla)
Job Maintenance worker in tea packing plant
Specific IgE 3.12 iu/ml to chamomile pollen (Immunocap)
Lymphocyte proliferation not tested
Skin prick test 6mm wheal to chamomile tea extract 10mg/ml
Patch test not done
Non-specific reactivity Histamine Pc20 20 mg/ml pre challenge and 8mg/ml post challenge
Serial Peak Flow not done
 Induced sputum Eosinophils 7.5% 6 hours post chamomile challenge, 0% post black tea
Specific Challenge 

immediate reaction to chamomile tea dust for 60 minutes, negative to black and lime tea

Follow-up

not stated

References

Full Text Available for Occupational asthma caused by chamomile Vandenplas O, Pirson F, D'Alpaos V, Vander Borght T, Thimpont J, Pilette C, Occupational asthma caused by chamomile , Allergy, 2008;63:1090-1092,
Olivier Vandenplas, Universite Mont-Goginne, Yvoir, an author of 'Occupational asthma caused by chamomile'

Full Text Available for Respiratory disorders and allergies in tea packers Abramson MJ, Sim MR, Fritschi L, Vincent T, Benke G, Rolland JM, Respiratory disorders and allergies in tea packers, Occup Med (London), 2001;51:259-265,
Michael Abramson, Monash University, Melbourne, Australia, an author of 'Respiratory disorders and allergies in tea packers'

No Abstract Available for Respiratory function in tea workers Zuskin E, Skuric Z, Respiratory function in tea workers, Brit J Industr Med, 1984;41:88-93,

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