Physicochemical
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(S)
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(S)
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(S)
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| Stability of Infectivity (effects) |
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20%
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1.4 dex
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6.0 dex
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0.1%
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4.0 dex
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7.0 dex
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Infective particle was not precipitated with protamine sulphate
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| Virion Morphology |
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<220 nm
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nm
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nm
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Passed filter APD 220 nm but not APD 100 nm
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| Morphogenesis |
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| Hemagglutination |
No
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SMB ext. by sucrose-acetone
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Young chick
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6.0-7.0
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CF, NT
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CF, NT
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