Výsledky vyhledávání - "Verwoerd, D W"

Definition of a vector and a vector-borne disease Autor Verwoerd, D W

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Nucleotide sequence of the jaagsiekte retrovirus, an exogenous and endogenous type D and B retrovirus of sheep and goats Autor York, D F, Vigne, R, Verwoerd, D W, Querat, G

“…The complete genome of the jaagsiekte sheep retrovirus (JSRV), the suspected etiological agent of ovine pulmonary carcinoma, has been cloned from viral…”
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History of bluetongue research at Onderstepoort Autor Verwoerd, D W

“…Research on this economically important disease of ruminants, especially sheep, which had been named bluetongue by farmers in the 19th century, has been part…”
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Detection of Maedi-Visna virus antibodies using a single fusion transmembrane-core p25 recombinant protein ELISA and a modified receiver-operating characteristic analysis to determine cut-off values Autor Boshoff, C.H., Dungu, B., Williams, R., Vorster, J., Conradie, J.D., Verwoerd, D.W., York, D.F.

“…The core p25 and transmembrane (TM) genes of Maedi-Visna virus (MVV) were cloned individually into the pGEX-2T expression vector. Both proteins were expressed…”
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A brief historical review of research achievements by the OVI during the 20th century against the background of socioeconomic and political developments in South Africa Autor Verwoerd, D W

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William Horner Andrews (1887-1953)- first professor of physiology at Onderstepoort Autor Verwoerd, D W, Andrews, W J H

“…W H Andrews qualified as a veterinarian in London in 1908 and was recruited soon after, in 1909, by Sir Arnold Theiler to join the staff of the newly…”
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The effect of a natural maedi-visna virus infection on the productivity of South African sheep Autor Dungu, B, Vorster, J, Bath, G F, Verwoerd, D W

“…A cohort study was conducted in order to measure the effect of the chronic indurative lymphocytic mastitis caused by the South African strain of maedi visna…”
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Isolation, identification, and partial cDNA cloning of genomic RNA of jaagsiekte retrovirus, the etiological agent of sheep pulmonary adenomatosis Autor York, D F, Vigne, R, Verwoerd, D W, Querat, G

“…The genome of the jaagsiekte (JS) retrovirus (JSRV), the etiological agent of sheep pulmonary adenomatosis (jaagsiekte), has been identified, isolated, and…”
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The role of veterinary research laboratories in the provision of veterinary services Autor Verwoerd, D W

“…Veterinary research laboratories play an essential role in the provision of veterinary services in most countries. These laboratories are the source of new…”
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Some characteristics of a retrovirus isolated from transformed bovine cells Autor York, D F, Williamson, A, Barnard, B J, Verwoerd, D W

“…A novel retrovirus has been isolated from bovine cells transformed after cocultivation with leukocytes from an animal suffering from sheep-associated bovine…”
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Characteristics of a novel lentivirus derived from South African sheep with pulmonary adenocarcinoma (jaagsiekte) Autor Quérat, G, Barban, V, Sauze, N, Vigne, R, Payne, A, York, D, De Villiers, E M, Verwoerd, D W

“…A novel lentivirus was isolated from South African sheep with experimentally transmitted lung adenocarcinoma. Similar to visna virus and caprine arthritis…”
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Structure of the bluetongue virus capsid Autor Verwoerd, D W, Els, H J, De Villiers, E M, Huismans, H

“…Seven polypeptides were found to be present in the capsid of the bluetongue virus (BTV), four of which are major and three are minor components. This number…”
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Global survey of serological evidence of caprine arthritis-encephalitis virus infection Autor Adams, D S, Oliver, R E, Ameghino, E, DeMartini, J C, Verwoerd, D W, Houwers, D J, Waghela, S, Gorham, J R, Hyllseth, B, Dawson, M

“…Using caprine arthritis-encephalitis virus antigen in the agar gel immunodiffusion test, 3729 serum samples from goats in over 112 locations around the world…”
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Characterization of bluetongue virus ribonucleic acid Autor Verwoerd, D W, Louw, H, Oellermann, R A

“…An improved purification procedure yielded bluetongue virus free from any single-stranded ribonucleic acid (RNA) component. Double-stranded RNA obtained from…”
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Biochemical transformation of mouse cells by herpes simplex virus type 2: enhancement by means of low-level photodynamic treatment Autor Verwoerd, D W, Rapp, F

“…The biochemical transformation of thymidine kinase-deficient cells by UV-inactivated herpes simplex virus is enhanced by low-level photodynamic treatment of…”
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New developments in major vector-borne diseases. Introduction Autor Zientara, S, Verwoerd, D W, Pastoret, P-P

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Purification and characterization of bluetongue virus Autor Verwoerd, D W

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Biotechnology, viral oncogenesis and jaagsiekte Autor Verwoerd, D W

“…A brief description is given of the discovery of retroviral and cellular oncogenes and of their putative role in oncogenesis. Attempts to apply the…”
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Control of transcription during the expression of the bluetongue virus genome Autor Huismans, H, Verwoerd, D W

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A scanning and transmission electron microscopy study of jaagsiekte lesions Autor Payne, A L, Verwoerd, D W

“…A scanning electron microscopy (SEM) and transmission electron microscopy (TEM) study was made of lesions from acute, experimentally induced cases of…”
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