Retroviridae Flashcards
Retrovirus
Reverse transcriptase enzyme
Immunosuppressive, cancer
Three layer structure
Genes gag pol env
Avian leucosis complex
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
Replucation defective
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
Diagnosis
Clinical signs
Intravenous inoculation chick embryo
Virus detection by cofal test
Novaccination
Visna or maedi
Ovine progressive pneumonia
Montana sheep disease
Maedi
1 weightloss
Dyspnoe
Rhythmic head jerking
Lesion only inLungs
Lungs consolidation
Ribimpression
Visna
Posterior pareisis leads to paraplegia
Only histopatho lesions
Demyelination of spinal cord
Diagnosis
Isolation in blood leucocyte culture
Synctitia
Rounding and giant cell formation
Bovine infectious aneamia
Swamp fever
Stomyxs flies
Macrophage replication lifelong viremia
Acute subacute chronic
Vasculitis and glomeerulonephritis
Diagnosis
Coggin test positive confirm by western blotting