多房棘球绦虫广泛分布于北半球，主要在野生动物间传播，完成其生活史。野生中间宿主为啮齿类动物，终宿主是以狐、狼等为主的食肉动物。但在圣劳伦斯岛，阿拉斯加，中美北部，中国甘肃、四川等地发现犬及其他食肉家养动物也有多房棘球绦虫的感染，由此造成人群的感染。多房棘 Echinococcus multilocularis widely distributed in the northern hemisphere, mainly spread among wildlife to complete their life history. Wild intermediate hosts for rodents, the final host is foxes, wolves and other predators. But in St. Lawrence, Alaska, northern China, Gansu, Sichuan and other places found dogs and other carnivorous domestic animals also have Echinococcus multilocularis infection, resulting in the crowd’s infection. More room spines