Physicochemical
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(S)
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1.23
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(S)
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(S)
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| Stability of Infectivity (effects) |
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1:5; 20 hr, 4dC
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4.4 dex
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7.6 dex
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1:1000
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2.0 dex
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7.6 dex
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| Virion Morphology |
Spherical
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36 nm
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nm
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nm
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Electron microscopy (2,3)
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Envelope observed; diameter = 3-5 nm (3);
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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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6.0-6.6
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6.2-6.4
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4-37dC
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21dC (room)
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In density gradient at least two separable hemagglutinins, CF
antigens and precipitins (3).
* Pool of 14 females, 12 males, 182 nymphes and 93 larvae
** Also aqueous-prot. ext.; cell culture fluid; other methods, see Reference 4.
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NT, HI, antibody absorption, immunodiffusion in ag
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In density gradient at least two separable hemagglutinins, CF
antigens and precipitins (3).
* Pool of 14 females, 12 males, 182 nymphes and 93 larvae
** Also aqueous-prot. ext.; cell culture fluid; other methods, see Reference 4.
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