Hayashidani H, Kitahara E, Ogawa M
Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Japan.
Zentralbl Veterinarmed B. 1994 Oct;41(7-8):504-11. doi: 10.1111/j.1439-0450.1994.tb00256.x.
Three species of wild rodents, Anderson's red-backed voles (Eothenomys andersoni), large Japanese field mice (Apodemus speciosus) and small Japanese field mice (Apodemus argenteus), mainly living in mountainous areas in Japan, were challenged orally with Yersinia enterocolitica serovar 0:8 to determine infectivity and pathogenicity of this micro-organism with respect to wild rodents. Y. enterocolitica 0:8 was shown to colonize the intestinal tract of these three types of wild rodents, and was occasionally fatal. The faecal excretion period of these mice was 10-14 days in E. andersoni and A. speciosus, and 35-49 days in A. argenteus. Wild rodents recovering from the infection showed resistance to a second challenge with the same infectious agent. These results suggest that these three species of wild rodents living in mountainous areas in Japan may play an important role in the ecology of Y. enterocolitica 0:8.
三种野生啮齿动物，即主要生活在日本山区的安德森红背田鼠（Eothenomys andersoni）、大日本田鼠（Apodemus speciosus）和小日本田鼠（Apodemus argenteus），经口感染小肠结肠炎耶尔森菌血清型0:8，以确定该微生物对野生啮齿动物的感染性和致病性。结果表明，小肠结肠炎耶尔森菌0:8能在这三种野生啮齿动物的肠道中定殖，且偶尔会导致死亡。安德森红背田鼠和大日本田鼠的粪便排泄期为10 - 14天，而小日本田鼠的粪便排泄期为35 - 49天。从感染中恢复的野生啮齿动物对相同感染因子的二次攻击表现出抗性。这些结果表明，生活在日本山区的这三种野生啮齿动物可能在小肠结肠炎耶尔森菌0:8的生态中发挥重要作用。
