[Species-specific detection of Listeria monocytogenes by directed DNA amplification].

A highly sensitive species-specific test system which allows detection Listeria monocytogenes in animal tissues is elaborated using the principle of a polymerase chain reaction. The potentialities of its application were studied in the conditions of experimental infection of animals. It is shown that while the procedure of detection is relatively simple and fast, the test system is as sensitive and specific as traditional microbiological methods.