title: Late Onset of Acute Urticaria after Bee Stings.
abstract: Here we report the cases of five patients with a late onset of acute urticaria after a bee sting. The ages of the five Japanese patients ranged from 33 to 86 years (median: 61). All patients had no history of an allergic reaction to bee stings. The onset of urticaria was 6-14 days (median: 10) after a bee sting. Although four of the patients did not describe experiencing a bee sting at their presentation, the subsequent examination detected anti-bee-specific IgE antibodies. So, we think a history of a bee sting should thus be part of the medical interview sheet for patients with acute urticaria, and an examination of IgE for bees may help prevent a severe bee-related anaphylactic reaction in the future.
authors.affiliation: Department of Dermatology, Shinshu University School of Medicine, Matsumoto, Japan.
authors.forename: Yuko
authors.initials: Y
authors.lastname: Asai
authors.affiliation: Department of Dermatology, Shinshu University School of Medicine, Matsumoto, Japan.
authors.forename: Hisashi
authors.initials: H
authors.lastname: Uhara
authors.affiliation: Department of Dermatology, Japan Red Cross Iiyama Hospital, Iiyama, Japan.
authors.forename: Atsushi
authors.initials: A
authors.lastname: Miyazaki
authors.affiliation: Department of Dermatology, Shinshu University School of Medicine, Matsumoto, Japan.
authors.forename: Minoru
authors.initials: M
authors.lastname: Saiki
authors.affiliation: Department of Dermatology, Shinshu University School of Medicine, Matsumoto, Japan.
authors.forename: Ryuhei
authors.initials: R
authors.lastname: Okuyama
keywords: Bee; IgE; Urticaria