Birnaviridae Flashcards
1
Q
What does Birnaviridae mean?
A
(bi-RNA)
2
Q
Morphology
A
segmented (2) dsRNA
icosahedral capsid
non enveloped
3
Q
Resistance
A
strong
4
Q
Biological properties
A
Baltimore III. - viral transcriptase
isolation only in species specific tissue culture (difficult)
virulence variants
5
Q
Antigentic properties
A
good antigens
no cross reactions
6
Q
Genus
A
Avibirnavirus genus
Aquabirnavirus genus:
7
Q
Avibirnavirus genus (examples):
A
Infectious bursal disease (Gumboro disease)
- chicken – multiplication in bursa of Fabricius
- immunosuppression
8
Q
Aquabirnavirus genus (examples):
A
Infectious pancreatic necrosis - Salmonidae
