Physicochemical
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(S)
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(S)
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(S)
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| Stability of Infectivity (effects) |
6 dex of infectivity inactivated at pH 3.0
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20%
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3.2 dex
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6.6 dex
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1:1000
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<2.5 dex
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6.6 dex
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| Virion Morphology |
Spherical
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80 nm
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84nmnm
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77-97nm
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Electron microscopy of thin sections
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Enveloped
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| Morphogenesis |
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| Hemagglutination |
Yes
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SMB ext. by sucrose-acetone
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Goose
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5.75-6.2
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6.0
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22dC, 37dC
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37dC
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HA production is difficult, usually of poor titer
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CF, NT, HI
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HA production is difficult, usually of poor titer
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