POLYOMAVIRIDAE Flashcards
1
Q
Polyomaviridae is separated from Papillomaviridae since what year?
A
2000
2
Q
Polyomaviridae is first recognized in cell lines contaminated with ?
A
Simian vacuolating virus (SV40)
— Shown to cause cancer in rabbits
3
Q
Polyomaviruses are not ubiquitous. True or False?
A
False
4
Q
Polyomaviruses often persist in a lifelong subclinical state. True or False?
A
True
5
Q
Meaning of “poly” and “oma”
A
many; tumor
6
Q
Give the clinical signs of Budgerigar fledgling disease polyomavirus.
A
- Feather dysplasia of primary wing feathers and tail feathers, evident as absence of feathers or thick sheaths
- In young chicks, disease may be sytemic
- Necrosis of liver, ascites and hydropericardium
7
Q
Give the clinical signs of Goose hemorrhagic polyomavirus.
A
- Acute and chronic inflammatory disease
- Hemorrhagic nephritis and enteritis of young geese
- Lesions of nephritis, depletion of lymphocytes in the cloacal bursa, enteritis, ascites,
- and edemas of the subcutaneous tissues reflect an epithelial and endothelial cell tropism of the virus
