Welshimer H J
J Bacteriol. 1968 Feb;95(2):300-3. doi: 10.1128/jb.95.2.300-303.1968.
A rural area in Virginia, in which clinical listeriosis of man and animals has been rare, was selected for this study. Vegetatino, which had died and remained in the fields over the winter, was collected and examined for Listeria monocytogenes by Gray's cold-holding procedure. Twelve fields were sampled and cultured, and eight strains of L. monocytogenes were isolated. Only two of the strains were pathogenic for the mouse. Compared with strains of L. monocytogenes isolated from listeric humans and animals in Virginia and the United States as a whole, these represented serotypes of low frequency.
弗吉尼亚州的一个农村地区,该地区人和动物的临床李斯特菌病一直很少见,被选作这项研究的对象。收集了冬季死亡并留在田间的植物,采用格雷氏冷藏法检测其中的单核细胞增生李斯特菌。对12块田地进行了采样和培养,分离出8株单核细胞增生李斯特菌。其中只有两株对小鼠具有致病性。与从弗吉尼亚州以及整个美国患李斯特菌病的人和动物中分离出的单核细胞增生李斯特菌菌株相比,这些菌株代表的是低频血清型。