蓝氏贾第鞭毛虫 (贾第虫 )寄生于人、犬和多种哺乳动物的肠道 ,其传播途径主要是通过污染了包囊的水源。贾第虫是否可以在人与犬之间互相传播仍有争议 ,若得到证实 ,那么无论是家养的犬还是野外的犬都会成为潜在的感染源 ,值得重视。有研究显示人源和动物源的贾第虫具较高的遗 Giardia lamblia (Giardia) parasites in humans, dogs and many mammalian gut, the main route of transmission through the cystic contamination of water. Whether Giardia can spread between humans and dogs is still controversial. If confirmed, both domestic dogs and dogs in the wild will become potential sources of infection worthy of attention. Studies have shown that human and animal origin of Giardia have a higher legacy