1984 年 30 巻 2Supplement1 号 p. 334-339
A case of pear pollinosis is reported. This 35-year-old farmer, engaged in pear culture, suffered from rhinitis, which pear pollen extract could provoke. He was also positive to an intradermal test using highly diluted pear pollen extract. An epidemiological survey focused on farmers engaged in culture of pear in Tottori Prefecture was carried out by questionnairing. Replies were submitted from 1412 persons. Occurrence of allergic symptoms during pear pollination work was described by 478 farmers (33.9%). Among the symptoms, sneeze and watery rhinorrhea were distinguished. There was no significant difference in age between farmers with and without allergic symptoms. Between subjects with and without allergic constitution, incidence of allergic symptoms was higher in the former.