Survey on allergic symptoms and their pathogenesis in chrysanthemum growers / 日本農村医学会雑誌

ABSTRACT

An epidemiological survey on allergic conditions of 58 male (aged 38.6±11.8yrs) and 47 female (aged 42.2 ± 9.6yrs) farmers engaged in growing chrysanthemums.<BR>Among the subjects, 47% of males and 62% of females had complaints of at least one of inquired allergic symptoms associated with the work. The immediate type of allergic reaction on nasal and/ or upper respiratory system raised in the process of sorting flowers in the working room and delayed ype of contact dermatitis in pinching the lateral bud of chrysanthemums or spraying agricultural chemicals in the field were the main complaints of those farmers.<BR>Incidence of positive reaction for patch testing to six kinds of chrysanthemums was 5% for males and 17% for females and that of eight kinds at agricultural chemicals was 34% and 45% for each sex. And relatively high incidence was also observed in those subjects from other immunological tests such as determination of serum immunoglobulin, prick testing and calculation of eosinophil in blood and rhinorrhoea.<BR>There were 39 (67%) males and 36 (77%) females who had at least one of the abnormal finding of those test items above mentioned. However, not the particular kind of Chrysanthemum cultivated in that area was found to be strong causative allergen for the observed allergic conditions.<BR>From these results, it is indicated that relatively high incidence of allergic disorders may be found in the chrysanthemum growers due to inhalation and/or contact of some kinds of allergens introduced from the process of growing to forwarding, such allergen as Chrysanthemum itself, agricultural chemicals and other elements.