Results 211 to 220 of about 44,855 (253)

Bovine viral diarrhea in a newborn calf

Journal of the American Veterinary Medical Association, 1985
Bovine viral diarrhea virus was believed to be the cause of ill-thrift since birth, resulting in death of a Holstein calf. Bovine viral diarrhea virus was isolated from Peyer's patches and mesenteric lymph nodes, but serum neutralizing antibodies were not detected.
K C, Lloyd, D D, Morris
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Immunologic Response of Bovine Fetus to Bovine Viral Diarrhea Virus

American Journal of Veterinary Research, 1973
SUMMARY Intraperitoneal inoculation of a cytopathogenic strain of bovine viral diarrhea-mucosal disease (bvd-md) virus, National Animal Disease Laboratory (NADL) strain, was performed in bovine fetuses at different stages of development to study their immunologic response to this virus. Results of morphologic, immunochemical, and serologic examinations
R K, Braun, B I, Osburn, J W, Kendrick
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The persistence of bovine viral diarrhea virus

Biologicals, 2003
Bovine viral diarrhoea virus (BVDV) has a unique capacity to cause persistent infections of foetuses exposed within the first 150 days of gestation. Preventing foetal BVDV infection will aid in improved control. This unique ability gives BVDV a selective advantage allowing continual mutation and antigenic variation within cattle populations. Therefore,
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Laboratory diagnosis of bovine viral diarrhea virus

Biologicals, 2013
The control and eventual eradication of bovine viral diarrhea virus (BVDV) have been defined as objectives to reduce the economic losses due to the presence of this virus in the cattle population. These goals could not be envisioned without the significant achievements in the diagnostic procedures employed to detect the infection in its various ...
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Natural recombination in bovine viral diarrhea viruses

1994
BVDV isolates exist as two biotypes differentiated at the molecular level by production of a p80 polypeptide. Insertions consisting of host cell sequences and/or duplicated and rearranged viral sequences have been observed in the portion of the genome coding for the p80 polypeptide in some, but not all, cytopathic BVDV.
J F, Ridpath, F, Qi, S R, Bolin, E S, Berry   +3 more
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Molecular biology of bovine viral diarrhea virus

Biologicals, 2013
Bovine viral diarrhea viruses (BVDV) are arguably the most important viral pathogen of ruminants worldwide and can cause severe economic loss. Clinical symptoms of the disease caused by BVDV range from subclinical to severe acute hemorrhagic syndrome, with the severity of disease being strain dependent.
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Diagnosis of Bovine Viral Diarrhea Virus Infections

Veterinary Clinics of North America: Food Animal Practice, 1995
Because of complex pathogenesis and insidious nature of BVDV infections, the laboratory diagnosis is an essential component of developing measures for the control and prevention of BVDV infections. The positive isolation of BVDV from animal submissions or from aborted fetuses should provide a strong indication for further epidemiologic investigations ...
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Vaccination of cattle against bovine viral diarrhea virus

Veterinary Microbiology, 2017
Bovine viral diarrhea virus (BVDV) is responsible for significant losses to the cattle industry. Currently, modified-live viral (MLV) and inactivated viral vaccines are available against BVDV, often in combination with other viral and bacterial antigens.
Benjamin W, Newcomer, Manuel F, Chamorro, Paul H, Walz   +2 more
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Evolution of bovine viral diarrhea virus vaccines

Veterinary Clinics of North America: Food Animal Practice, 2004
Control of bovine viral diarrhea virus (BVDV) infection is economically important to the cattle industry because the virus causes a variety of clinical diseases that adversely affect essentially all stages of the production cycle. Production losses primarily stem from reproductive failure and from immunosuppression during acute BVDV infection, which ...
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Bovine Respiratory Tract Disease Caused by Bovine Viral Diarrhea Virus

Veterinary Clinics of North America: Food Animal Practice, 1997
Although several viruses and bacteria are capable of inducing bovine respiratory tract disease, a pivotal organism in the cause of this complex disease may be bovine viral diarrhea virus (BVDV). Circumstantial evidence has long supported this hypothesis. It is frequently present in diseased respiratory tract tissues often together with other viruses or
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