贾第虫分离株在蒙古沙鼠和SCID小鼠中的传染性 接种了一种新建立的人类来源的肠球菌菌株（ISO/90/1， ISO/90/2）和参考隔离物ATCC 30888已被研究。 用滋养体接种蒙古沙土鼠，导致急性和严重的感染 可复制的感染模式。36%的接种沙鼠表现出感染症状 第一次接种后感染，而第二次接种导致 85%是相同的沙鼠。感染ISO/90/2的SCID小鼠组未能 释放粪便中的囊肿，而第二个接种组感染 在接种后13天，ISO/90/1显示囊肿数量较低。囊肿排泄量减少 间歇性感染主要在感染的第二周和第三周释放。 蒙古沙鼠有助于评估寄生虫的生存能力和传染性 各种来源。应变差异可能有助于形成不同的模式 感染，这取决于诊断中的临床后果。 包括表格、数字。

The infectivity of Giardia isolates in Mongolian gerbils and in SCID mice inoculated with a new established G. intestinalis strains of human origin (ISO/90/1, ISO/90/2) and a reference isolate ATCC 30888 has been investigated. Inoculation of Mongolian gerbils with trophozoites resulted in an acute and reproducible pattern of infection. 36 % of inoculated gerbils showed symptoms of infection after a first inoculation, whereas a second inoculation resulted in infection of 85% of the same gerbils. The group of SCID mice infected with ISO/90/2 failing to release cysts in the faecal material, while the second inoculated group infected with ISO/90/1 showed a low number of cysts at 13 days post inoculation. Cyst excretion was intermittent mostly released during the second and the third week of infection. Mongolian gerbils are useful to assess viability and infectivity of parasites from various sources. Strain differences may contribute to the development of different patterns of infections, which rely to clinical consequences in the diagnosis. Includes tables, figures.