免疫学上已证明,感染人类使人肠胃虚弱的贾弟鞭毛虫病菌已从两种澳大利亚有袋动物中分离出来,一种是澳大利亚北方袋狸(Isoodon macrouris),另一种是澳大利亚红颈小袋鼠(Thylogale thetis)。因此。如果排除人类和家畜的传播,感染人类的贾弟鞭毛虫病可由澳大利亚的野生哺乳动物在未被感染的水域内或水域之间传播。此种贾弟鞭毛虫病病菌的生活周期分两个阶段。活动期。在此期间内,它是一个滋养体,此滋养体可迅速在寄主的内脏中大量繁殖,然后是第二周期——进入包囊中,包囊藏身于粪便中,浓度高达10~7～10~9个/g之多。包囊一般只是短时期藏在粪便中,因此一次粪便检查很可能查不到传染上病菌的包囊个体。吃下了1～10个包 Immunologically, it has been shown that giardia Giardia infecting humans is having been isolated from two Australian marsupials, one from the Isoodon macrouris and the other from Australia, Kangaroo (Thylogale thetis). therefore. If the spread of human beings and livestock is ruled out, giardiasis infecting humans can be spread by Australian wild mammals in uninfected waters or between waters. This Giardia lamblia pathogen life cycle is divided into two stages. Active period. In the meantime, it is a trophozoite that multiplies rapidly in the host’s gut, followed by the second cycle - into the cyst, and the cysts hide in the stool at concentrations up to 10 -7 to 10 ~ 9 / g as much. Encapsulation is generally hidden in the stool for a short period of time, so a stool examination may not detect the individual encapsulated by the pathogen. Eat 1 to 10 packages