Retroviridae Flashcards

1
Q

Retrovirus

A

Reverse transcriptase enzyme
Immunosuppressive, cancer
Three layer structure
Genes gag pol env

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Avian leucosis complex

A

Rep competent virus
Diff type of symptomes like

Lymphoid leucosis

Osteopetrosis

Renal tumour

Lymphoid leucosis

Affects lymphoblasts that express b lymphocytes
Nodules on bursa spread through metastasis

Osteopetrosis

Osteoblasts affectd

Renal tumour
Nephroblastoma
Carcinoma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Replucation defective

A

Erythriblastosis
V.erb gene
Two forms proliferative aneamic

Myeloblastosis
Target myeloblasts in bone marrow
Leukeamia
Liver enlargement

Sarcoma
Hemagioma in skin
Blood blister
Encourage cannibalism

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Diagnosis

A

Clinical signs
Intravenous inoculation chick embryo

Virus detection by cofal test

Novaccination

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Visna or maedi

A

Ovine progressive pneumonia
Montana sheep disease

Maedi

1 weightloss
Dyspnoe
Rhythmic head jerking

Lesion only inLungs

Lungs consolidation
Ribimpression

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Visna

A

Posterior pareisis leads to paraplegia
Only histopatho lesions
Demyelination of spinal cord

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Diagnosis

A

Isolation in blood leucocyte culture

Synctitia
Rounding and giant cell formation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Bovine infectious aneamia

A

Swamp fever
Stomyxs flies

Macrophage replication lifelong viremia

Acute subacute chronic

Vasculitis and glomeerulonephritis

Diagnosis

Coggin test positive confirm by western blotting

How well did you know this?
1
Not at all
2
3
4
5
Perfectly