Polyomaviridae Flashcards
1
Q
Morphology
A
circular dsDNA
superhelical
icsohederal capsid
non envelope
2
Q
Resistance
A
strong
3
Q
Biological properties
A
Baltimore I - cellular transcriptase
oncogenic - SV40 model virus
Latency: integration into the genome - provirus
Airborn
in cell cultures - micro tumors
hemagglutination
persistent infection int the kidney - viruria
4
Q
Diagnosis
A
IF
EM
NA-hybdridization
PCR
5
Q
Genus
A
Polyomavirus
6
Q
Examples of viruses
A
SV40 Bovine polyomavirus Goose polyomavirus Human: - BK virus - JC virus
7
Q
JC virus
A
50-90% seropositivity, generally no clinical symptoms
rare fatal demyelization
•in immunosuppressed patients (AIDS 4%)
8
Q
BK virus
A
80-100% seropositivity, no clinical symptoms
•nephropathy in kidney transplant recipients