Physicochemical
RNA
|
|
|
Yes (14)
|
(S)
|
|
|
|
|
|
|
|
|
(S)
|
|
(S)
|
|
| Stability of Infectivity (effects) |
|
50%, +4dC, 24 hr
|
5.7 dex
|
8.8 dex
|
|
|
|
0.1-0.3%
|
3.5 dex
|
8.5 dex
|
1 M MgCl2, 25/C for 6 days; reduces virus titer to 0 dex
|
|
| Virion Morphology |
Spherical, sl. Polygonal
|
30-40 nm
|
nm
|
nm
|
Electron microscopy (7)
|
Envelope bilayer observed
|
|
|
| Morphogenesis |
|
|
|
|
|
|
| Hemagglutination |
Yes
|
SMB; chick or pig kidney embryo cell cult. fluid, CAF ext.
by borate-saline pH 9.0
|
Goose
|
6.6-7.0
|
6.8
|
|
4dC
|
|
HI, CF, NT, agar gel precipitation
|
|
| |
