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Virus Name/Prototype
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  Ibaraki   IBAV

Possible Arbovirus

No

3

Isufficient experience with virus; i.e., experience factor from SALS surveys was less than 500 in laboratory facilities with low biocontainment.
Other Information
 

Epizootic Hemorrhagic Fever
Section IV - Virus Properties
Physicochemical
RNA, Double Strand
 



(S)









(S)


(S)

Stability of Infectivity (effects)

Labile at pH 3.0; stable at pH 6.4

20%

4.8 dex

5.5 dex

5%

5.8 dex

5.5 dex

0.1%

6.2 dex

5.8 dex

Sens. to trypsin, resistant to repeated freeze-thaw (4,6)

Virion Morphology

Spherical

55 nm (9)

55 (9) nmnm

range 50-60 nmnm

Negative contrast

Pseudo-envelope (9)

Cubic T=3 (9); Capsomere=32 (9)

Morphogenesis

Cytoplasm (9)

Budding from cell membrane, intracytoplasmic viral matrices (9)

Cytoplasm, extra-cellular space (9)


Tubular structures in cytoplasm (9)

Hemagglutination

No

Inf. bovine kidney cell cult. fl. Acetone-ether ext. SMB

Many*

7.2


37dC, 22dC, 4dC


* Cattle, horse, sheep, goat, guinea pig, mouse and chicken erythrocytes tested

NT, CF

* Cattle, horse, sheep, goat, guinea pig, mouse and chicken erythrocytes tested
 
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