ON A HITHERTO UNREPORTED PHENOMENON SUGGESTING POSSIBILITY OF MULTIPLICATION OF EQUINE INFECTIOUS ANEMIA VIRUS IN LAMB BODY

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Through the present three series of experiments the authors found a hitherto unknown phenomenon that seems to ensure the possibility of propagation of equine infectious anemia virus in lamb body. That is : 1. In one lamb of the first group, E. I. A. virus appeared in a lot of peripheral blood samples collected on the 20th, 21st and 22nd days after subcutaneous inoculation of the virus. This lot contained a smaller quantity of the equine serum components than other lots from the same lamb taken on the 1st, 2nd, 3rd, 5th, 7th, 10th and 14th days. 2. The virus was detected both in lot K which was collected from three lambs of the second group on the 1st, 2nd and 3rd days subsequent to introduction of the virus and in lot N from two lambs out of three on the 14th, 21st and 28th days. However, attempts to demonstrate the virus in two other lots, L and M resulted in failure. Lot L consisted of nine samples of blood taken from three lambs on the 5th, 7th and 10th days and included a larger amount of the equine serum components than did lot N. 3. Moreover, two lots (O and Q) out of three of the third group were virulent for horses. The quantity of the equine serum components in virus-negative lot P was larger undoubtedly than that of virus-positive lot Q. 4. In lamb No. 23,the time of viremia coincided with the febrile period of the animal. 5. The authors recognized some histopathological findings suggestive of E. I. A. infection in one lamb out of 11.
北海道大学の論文

ON A HITHERTO UNREPORTED PHENOMENON SUGGESTING POSSIBILITY OF MULTIPLICATION OF EQUINE INFECTIOUS ANEMIA VIRUS IN LAMB BODY

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