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) |
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1:1000
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<2.0 dex
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3.7 dex (5)
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Probably similar to types 1 and 2
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| Virion Morphology |
Spherical
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45-50 nm
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nm
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nm
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By electron microscopy of LLC-MK2 cells (3,4)
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Envelope and spikes present
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| Morphogenesis |
Virions in crystalline formations in cytoplasm (3,4)
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Membranes of endoplasmic reticulum
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Cisternae of endoplasmic reticulum
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| Hemagglutination |
Yes
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SMB ext. by sucrose-acetone
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Goose
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6.0-7.0
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6.4
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24dC and 37dC
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24dC (5)
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See DEN-1 and 2 for HA's and CF antigens fractions.
* Incomplete clinical record; seen during epidemic of hemorrhagic fever.
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PRNT, CF, HI, immunodiffusion
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See DEN-1 and 2 for HA's and CF antigens fractions.
* Incomplete clinical record; seen during epidemic of hemorrhagic fever.
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