1929年首次在人体分离、鉴定出革兰氏阳性细菌—单核细胞增多性李司忒氏茵(Lister monocytogenes)。1940年建立了分类学的名称,属名依据Sir Spencer Lister命名,种名依据该菌感染动物后以自细胞增多为特征而命名。李氏菌广泛分布在自然界,已从健康和死亡的动物中分离到该菌,在水、土壤和植物中也易被发现。该菌感染牛和绵羊的主要临床表现 Isolated for the first time in humans in 1929, the gram-positive bacterium Lister monocytogenes was identified as monocytogenes. The taxonomic name was established in 1940 with the genus name being named after Sir Spencer Lister and the species name is based on the fact that the bacterium infects animals and is characterized by an increase in the number of cells. Listeria is widely distributed in nature and has been isolated from healthy and dead animals and found in water, soil and plants. The bacteria infect cattle and sheep the main clinical manifestations