[The pool method for the isolation and signal identification of Yersinia]

To study the ecology of Yersinia, culture media, the pool method and the algorithm for their isolation and identification are proposed. The correct selection of typical Yersinia colonies grown in special media is the major step. This permits the study of culture pools (their amount reaching 12 and more from each sample) and makes it expedient to use the economical dish method for obtaining pure cultures and identifying Yersinia by the minimal set of key signs. The use of these methods makes it possible to study a great number of cultures and to obtain valuable information on local Yersinia populations with the least expenditures.