LYMPHOMATOSIS, MYELOMATOSIS, AND ENDOTHELIOMA OF CHICKENS CAUSED BY A FILTERABLE AGENT

Abstract
A new transmissible strain of leukosis of chickens is described that causes (a) lymphomatosis with or without tumor formation, and with or without leukemia, (b) myelocytomatosis with or without leukemia, and (c) endothelioma. All these diseases are transmissible by material free from viable cells, and the available evidence indicates that they are caused by a single filterable agent.