[Neuramininase activity of the representatives of the genus Yersinia].

The authors demonstrated the presence of neuraminidase in Past. pestis. Optimal conditions for its formation and detection were chosen. Extracellular form of neuraminidase was revealed. An increase of cultivation temperature led to the elevation of the neuraminidase activity in Past. pestis cells. Neuraminidase was revealed in bacteria affiliated to Past. pestis (causative agents of pseudotuberculosis and Y. enterocolitica).