Marigold flour asthma in an animal feed worker (new cause)

Agent	Marigold flour
Job	Porter in animal feed mill
Specific IgE	Positive, cross reacts withy Helianthus annulus pollen
Skin prick test	positive 20mg/ml
Non-specific reactivity	not done
Serial Peak Flow	not done
BAL	not done
FENO	not done
Specific Challenge	Specific nasal with maigold flour 2mg/ml and Artemisia vulgaris.No control in patient, but control in 8 unexposed.
Follow-up	no information

References

	Lluch-Pérez M, García-Rodríguez RM, Malet A, Amat P, Bartolomé B, Occupational allergy caused by marigold (Tagetes erecta) flour inhalation, Allergy, 2009;64:1100-1101,

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