Summary
Two virus strains isolated from stools of poliomyelitis patients were apparently a mixture of a type 2 strain of poliomyelitis virus, and of a strain of the Columbia SK group of viruses. Both components of the E.S. strain could be separated by neutralization of second passage cynomolgus monkey cord with either Lansing or Columbia SK hyperimmune serum. A similar technique with the 19th monkey passage of the A.K. strain failed to separate the components of this strain, which is suggested to be due to interference. Under experimental conditions, the murine A.K. strain was shown to interfere with the simian A.K. strain. Similarly, the original Columbia SK virus interfered with the Aycock strain of type 2 poliomyelitis virus. No interference was observed between the murine A.K. strain and types 1 and 3 poliomyelitis virus.
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Aided with a grant from the National Health Research Council T.N.O., The Hague, and from the Dr Simon Baruch Foundation, New York.
W. H. O. Fellow, on leave of absence from the Université Libre de Bruxelles.
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Verlinde, J.D., Molron, J.H. Mixed infection with type 2 poliomyelitis virus and Columbia SK group virus in man. Antonie van Leeuwenhoek 20, 129–140 (1954). https://doi.org/10.1007/BF02543714
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DOI: https://doi.org/10.1007/BF02543714