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Abstract
Summary
Biological and serological properties of a simian agent (strain mk 5) were investigated and it was shown to be a type 1 foamy virus. Grids prepared from cells lysed with sodium phosphotungstate were satisfactory for demonstrating the virus and, using this technique, the standard virus particle was found to be 1100 Å in diameter. It was composed of an envelope with 125 Å projections with an internal component 725 Å in diameter. Variations in the morphology of the virus are described. The structure of foamy agents types 1 to 3 was indistinguishable from that of mk 5.
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- Accepted:
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© Journal of General Virology 1968