单核细胞增生李斯特菌(Listeria monocytogenes,LM)是一种重要的食源性致病菌,能产生溶血性外毒素,引起人和动物的李斯特菌病[1,2]。它的主要易感人群是免疫缺陷病人、孕妇、新生儿和老人,虽然它的发病率低,但死亡率较高(20~30%)[3]。因此加强对LM分型研究,追踪污染的来源,对控制食源性疾病的爆发,预防食品安全问题具有十分重要的作用[4,5]。 Listeria monocytogenes (LM) is an important food-borne pathogen that produces hemolytic exotoxins that cause listeriosis in humans and animals [1,2]. Its predominant susceptibility populations are immunocompromised patients, pregnant women, newborns and the elderly, although the incidence is low but mortality is high (20-30%) [3]. Therefore, it is of great importance to strengthen the classification of LM and trace the sources of contamination, and control the outbreak of foodborne diseases and prevent food safety problems [4,5].