The current state of bacteriophagy

All theories of bacteriophagy generally fall into two categories: theories that consider a "living" cause, a special ultramicrobe-parasite bacteria, as the basis of the phenomenon, and theories that consider the bacteriophage lysine a product of the bacteria themselves. Of the theories of the first group, the most complete and consistent is the theory of the author, to whom we owe the discovery of the phenomenon that bears his name.