Which agar is specifically designed to support the growth of enteric bacteria such as Yersinia?

Cefsulodin-irgasan-novobiocin (CIN) agar is specifically designed to support the growth of enteric bacteria, particularly Yersinia species, including Yersinia enterocolitica. CIN agar is selective due to the presence of cefsulodin, which inhibits the growth of many gram-positive and some gram-negative bacteria, allowing for the recovery of enteric pathogens. It contains irgasan and novobiocin, which aid in suppressing unwanted flora in samples, creating an environment that favors the growth of Yersinia.

In addition to its selective properties, CIN agar incorporates a dye that changes color in the presence of Yersinia, facilitating its identification. This makes it particularly useful for isolating and identifying Yersinia in clinical and environmental samples. The other types of media listed serve different purposes; notably, they do not have the same selective characteristics for Yersinia.