Itoh N, Muraoka N, Aoki M, Itagaki T
Kamome Veterinary Clinic, Sozen Nishi 7-9-2932, Hashikami, Sannohe, Aomori 039-1212, Japan.
Kansenshogaku Zasshi. 2001 Aug;75(8):671-7. doi: 10.11150/kansenshogakuzasshi1970.75.671.
A total of 1035 household dogs were examined for the presence of Giardia lamblia (G. lamblia) in their feces. Fecal samples from 151 (14.6%) of the dogs were positive for Giardia. The protozoan was more often detected in soft feces (26.4%) than in normal (10.0%) or diarrheic feces (13.7%) (p < 0.001 and p < 0.01, respectively). The forms of the organisms obtained from the 151 dogs were cysts (77.5%), trophozoites (9.9%), or both cysts and trophozoites (12.6%). Dogs kept indoors had a higher prevalence (18.5%) of Giardia than dogs kept outdoors (4.8%) (p < 0.001). Giardia infection was also more prevalent in 1-6 months old puppies (21.7%) compared to other groups (2.4%-7.5%) (p < 0.001). The prevalence of Giardia in dogs originally purchased from pet shops or breeding kennels was extremely high (21.5%) compared to that of dogs from individual households (4.3%) (p < 0.001). With regard to human public health, the high infection rate of Giardia in puppies and dogs kept indoors is a serious problem because G. lamblia in infected dogs may have zoonotic potential. No reports of human giardiasis transmitted from dogs have been made. However, the results of this study suggest that the risk of Giardia transmission from household dogs to humans is not negligible. Pet owners should be taught appropriate hygiene measures to prevent Giardia transmission from dogs to humans.
对总共1035只家养犬的粪便进行了检查，以确定是否存在蓝氏贾第鞭毛虫（简称贾第虫）。151只（14.6%）犬的粪便样本贾第虫检测呈阳性。该原生动物在软便中（26.4%）比在正常粪便（10.0%）或腹泻粪便（13.7%）中更常被检测到（p分别<0.001和<0.01）。从151只犬获得的生物体形态为包囊（77.5%）、滋养体（9.9%）或包囊和滋养体两者（12.6%）。室内饲养的犬贾第虫患病率（18.5%）高于室外饲养的犬（4.8%）（p<0.001）。与其他组（2.4%-7.5%）相比，1至6月龄幼犬的贾第虫感染也更普遍（21.7%）（p<0.001）。与来自个体家庭的犬（4.3%）相比，最初从宠物店或繁殖犬舍购买的犬贾第虫患病率极高（21.5%）（p<0.001）。关于人类公共卫生，幼犬和室内饲养犬的贾第虫高感染率是一个严重问题，因为感染犬体内的蓝氏贾第鞭毛虫可能具有人畜共患病潜力。目前尚无犬传播人类贾第虫病的报告。然而，本研究结果表明，家养犬向人类传播贾第虫的风险不可忽视。应教导宠物主人采取适当的卫生措施，以防止贾第虫从犬传播给人类。
