Okamoto M, Fujita O, Arikawa J, Kurosawa T, Oku Y, Kamiya M
Department of Parasitology, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan.
Int J Parasitol. 1992 Aug;22(5):681-4. doi: 10.1016/0020-7519(92)90020-l.
Forty-two rats, Rattus norvegicus, captured at a garbage dump in southern Hokkaido, Japan, were examined, and one was found to be infected with Echinococcus multilocularis. The lesions were found in the liver, lung, mesenteric lymph nodes, greater omentum and also free in the abdominal cavity. No necrosis was observed in any of the lesions, and inflammatory reactions were mild. Protoscoleces were observed in the large liver cysts. A homogenate of these cysts, when transplanted into the abdominal cavity of three Mongolian gerbils and a rat, yielded numerous fully developed protoscoleces at 4-7 months post-inoculation. Judging from this, it is postulated that the rat could become a natural intermediate host for E. multilocularis in this area.
对在日本北海道南部一个垃圾场捕获的42只褐家鼠进行了检查，发现其中一只感染了多房棘球绦虫。病变见于肝脏、肺、肠系膜淋巴结、大网膜，也见于腹腔游离部位。在任何病变中均未观察到坏死，炎症反应轻微。在大的肝囊肿中观察到原头节。将这些囊肿的匀浆接种到3只蒙古沙鼠和1只大鼠的腹腔后，在接种后4至7个月产生了大量发育完全的原头节。据此推测，在该地区大鼠可能成为多房棘球绦虫的天然中间宿主。
