Enhanced Replication of Orbiviruses in Bovine Testicle Cells Infected with Bovine Viral Diarrhoea Virus.

Glycoproteins of bovine viral diarrhoea-mucosal disease virus in infected bovine cells.

Bovine cell cultures infected with bovine viral diarrhoea-mucosal disease (BVD) virus were radiolabelled with L-[35S]methionine or D-[2-3H]mannose followed by analysis of the labelled polypeptides by radioimmunoprecipitation and polyacrylamide gel electrophoresis in one and two dimensions. Six glycoproteins were detected in infected cells. Two abundant species had Mr of 48K and 56K to 58K while...

Gene expression changes in MDBK cells infected with genotype 2 bovine viral diarrhoea virus.

Bovine viral diarrhoea viruses (BVDVs) are ubiquitous viral pathogens of cattle. These viruses exist as one of two biotypes, cytopathic and noncytopathic, based on the ability to induce cytopathic effect in cell culture. The noncytopathic biotypes are able to establish inapparent, persistent infections in both cell culture and in bovine foetuses of less than 150 days gestation. Interactions wit...

Immunofluorescence studies of biotype-specific expression of bovine viral diarrhoea virus epitopes in infected cells.

The expression of biotype-specific epitopes in cells infected with cytopathic (cp) and non-cytopathic (ncp) bovine viral diarrhoea virus (BVDV) was analysed by immunofluorescence. Four monoclonal antibodies (MAbs) directed against different epitopes on the viral glycoprotein gp48 were used. With cells infected with cpBVDV strain NADL, the four MAbs yielded a strong and granular cytoplasmic fluo...

The occurrence of bovine virus diarrhoea/muscosal disease in Iran

Detection of Bovine Viral Diarrhea Virus in Bovine Semen Using Nested-PCR

A rapid and sensitive reverse transcription polymerase chain reaction (RT-PCR) and nested-PCR were used to detect bovine viral diarrhea virus 1 (BVDV-1) in bull semen. Selected primers could amplify a part of the 5´UTR of the BVDV genome. A 294 bp DNA fragment was amplified and specificity of the results was confirmed by direct sequencing of the PCR product. Prior to RNA extraction, the seminal...