关键词: 鼠疫菌, 存活时间, 再感染力

Abstract: The experiment on the survival period of plague Bacillus in rodent pelt which desiccated under the natural circumstance was carried out. The result showed that the Bacillus in the feet region of dry pelt could existed for Ⅰ to Ⅱ days, the Bacillus in the surface of the pelt only existed for Ⅰ to 7 days. But the Bacillus in the feet region of pelt which treated with salts could existed for Ⅰ to 5 days. There was no significant difference in the survival period of Bacillus in the feet region of both pelt, but significant difference in the survival period of Bacillus in the surface between dry and salts treated pelt was founded. Reinfecting action of the peltry(act as reservoir of infection) could lasted for 7 days in the surface, and for 9 days in the feet region of Bacillus.The peltry handled with salts could not infected the white mouse in laboratory. The pelt with Bacillus in the feet region would keep the reinfecting action for Ⅰ to 5 days. There was no significant differece in the survival period of Bacillus both in the surface and feet. the marmot pelt in the market, but Bacillus in the surface of selts handled with salts would survive more shorter period of time than that of dry pelt.