経験

当院における Giardia lamblia の検出状況

森　本　徳　仁*1　小　松　千　津*2　片　岡　浩　巳*3
小　倉　克　巳*4　杉　浦　哲　朗*5　　　　　　　　　
　　　　　　　　　　　　　　　　　　　　　　
Incidence and Clinical Features of Giardia lamblia

Norihito MORIMOTO*1, Chizu KOMATSU*2, Hiromi KATAOKA*3,
Katsumi OGURA*4 and Tetsuro SUGIURA, MD*5

To determine the incidence and clinical features of Giardia lamblia infection, we studied 1790 patients at Kochi Medical School Hospital from April 1998 to July 2001. Fecal samples were examined microscopically by the direct smear method, direct immunofluorescent assay and by Kohn’s one-step staining for G. lamblia cysts. Cysts of G. lamblia were found in 17 of 1,790(0.95%) stool samples, indicating that G. lamblia infection is not rare in Kochi. The most characteristic feature was that G. lamblia-positive cases were more frequent in the advanced age group(41-79 years old) and most of the subjects(except 2 cases) with G. lamblia had no history of traveling overseas. Four subjects had symptoms related to G. lamblia infection. Thus, more attention should be given to parasitic infections in laboratory stool examinations in order to detect cyst carriers as potential sources of infection.
[Rinsho Byori 51 : 633〜636, 2003]

*1Department of Clinical Laboratory, Kochi Medical School Hospital, Nankoku 783-8505

【Key Words】Giardia lamblia(ランブル鞭毛虫)，protozoan infection(原虫感染)，parasitological examination(寄生虫学的検査)，Japanese(日本人)

受付2002年12月28日・受理2003年5月14日
*1〜5高知医科大学医学部附属病院検査部，*5同　臨床検査医学講座(〒783-8505 南国市岡豊町小蓮)

E-mail :morimoto@med.kochi-ms.ac.jp