Occupational asthma due to Panax ginseng and Sanyak (Dioscorea batatas); new causes

Agent	Panax ginseng and Sanyak (Dioscorea batatas)
Job	Herb merchant for 2 years
Specific IgE	positive to Sanyak, negative for ginseng
Specific IgG4	positive to Sanyak, negative to ginseng
Skin prick test	positive Sanyak (1;1000w/v) and ginseng (1;100w/v)
Non-specific reactivity	Methacholine PC20  0.75mg/ml
Serial Peak Flow	not done
Induced sputum	not done
Specific Challenge	Immediate reactions to Sanyak (1;1000w/v) and ginseng (1;100w/v)
Follow-up	no data

References

	J.-Y. Lee, Y.-D. Lee, J.-W. Bahn, H.-S. Park, A case of occupational asthma and rhinitis caused by Sanyak and Korean ginseng dust, Allergy, 2006;61:392-393,

Comments