Springer Online Journal Archives 1860-2000
Abstract Yersinia enterocolitica has been isolated from a wide variety of sources throughout the world. The isolation of this organism requires special awareness from bacteriologists. To ease this procedure, we have developed a new isolation medium—BABY 4—meant to be used for environmental studies. Compared with previously recommended media, such as SS agar, SS-D agar, and urea-novobiocin agar, it allows easy detection ofY. enterocolitica in various types of waters. It counterselects Enterobacteriaceae species fromY. enterocolitica in a ratio of 10−1 to 10−5 and makes quantitative studies of environmental sources possible. This medium also allows the detection after 3–4 days' incubation of as few as 103 Y. enterocolitica per gram of stool.
Type of Medium: