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J Natl Cancer Inst. 1983 May;70(5):891-7.

Avian erythroblastosis virus isolated from chick erythroblastosis induced by lymphatic leukemia virus subgroup A.


A new strain of avian erythroblastosis virus (AEV), designated "AEV-H," was established by serial passages of a field isolate of avian lymphatic leukemia virus subgroup A [LLV(A)] in chicks from a White Leghorn flock of line 151 chicks. One stock of AEV-H contained 10(4) focus-forming units/ml virus and 10(9) tissue culture infective dose/ml LLV(A). All of the chicks that received ip inoculations of 0.2 ml AEV-H developed erythroblastosis complicated by fibrosarcoma 16-24 days (approximately equal to 17.7 days) after inoculation. Pathologic changes of erythroblastosis were macroscopically observed, mainly in such visceral organs as the liver, spleen, and bone marrow. In addition, microscopic changes were observed in the lung, kidney, ovary, and heart. Pathologic changes of fibrosarcoma were so conspicuous that they were recognizable by the naked eye in the pancreas and in the serous membrane of the intestine.

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