Physicochemical
RNA
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(S)
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(S)
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(S)
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| Stability of Infectivity (effects) |
Lyophilizes well; survives better at 20% than 84% RH (21).
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1:1
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0 dex
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6.4 dex (14)
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1:2000
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<1.0 dex
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5.5-6.0 dex (14)
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Resistant to trypsin, chymotrypsin and papain (22)
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| Virion Morphology |
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20-67 nm
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nm
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nm
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Filtration (2) and electron microscopy (27)
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Capsid
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| Morphogenesis |
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| Hemagglutination |
Yes
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SMB (4) or serum (6) HeLa and human amnion; acetone-ether or
sucrose-acetone and protamine; fluorocarbon.
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Several*
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6.0-7.2
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6.4-6.8
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4dC-37dC
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25-37dC
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Low mouse passage virus is more neutralizable than high passage (15).
* Goose, chick, cockerel (and hen if protamine antigen used).
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HI,CF,NT
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Low mouse passage virus is more neutralizable than high passage (15).
* Goose, chick, cockerel (and hen if protamine antigen used).
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