Results 221 to 230 of about 881,797 (260)

Immunology of Bovine Viral Diarrhea Virus

Veterinary Clinics of North America: Food Animal Practice, 1995
Often persistent and primary postnatal infections with BVDV result in immunosuppression in cattle, thereby enhancing the vulnerability of the latter to secondary infections. The evidence for and nature of impaired immunity in these animals is reviewed. Our knowledge of the extent and nature of protective immunity induced by natural BVDV infections and ...
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Response of cattle persistently infected with noncytopathic bovine viral diarrhea virus to vaccination for bovine viral diarrhea and to subsequent challenge exposure with cytopathic bovine viral diarrhea virus

American Journal of Veterinary Research, 1985
SUMMARY Nine steers persistently infected with noncytopathic bovine viral diarrhea (bvd) virus were allotted into 3 groups (3 cattle/group). Cattle in group A were vaccinated with a modified-live bvd virus vaccine of porcine cell origin, cattle in group B with a modified-live bvd virus vaccine of bovine cell origin, and cattle in group C with a killed ...
S R, Bolin, A W, McClurkin, R C, Cutlip, M F, Coria   +3 more
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Characterization of bovine viral diarrhea virus proteins

Journal of Virology, 1984
Virus-specific proteins were examined in cultured cells infected with bovine viral diarrhea virus. By using antisera obtained from virus-infected animals, three major virus-specific polypeptides with molecular weights of 115,000 (115K), 80K, and 55K were observed. Minor proteins of 45,000 and 38,000 daltons were also noted.
A F, Purchio, R, Larson, M S, Collett
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Bovine Viral Diarrhea Virus

2019
Bovine viral diarrhea (BVD) is prevalent worldwide and causes high economic losses in cattle due to a variety of disease syndromes. BVD is caused by three bovine pestiviruses, bovine viral diarrhea virus 1 (BVDV-1), BVDV-2 and HoBi-like pestivirus (HoBiPeV) with considerable genetic and antigenic heterogeneity.
Niranjan Mishra, S. Kalaiyarasu
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Effect of levamisole on induced bovine viral diarrhea

Journal of the American Veterinary Medical Association, 1983
Summary The effect of levamisole in calves experimentally infected with bovine viral diarrhea virus was evaluated in a double-blind study. The infection was mild and there was no difference in severity of infection or speed of recovery between levamisole-treated and 0.9% NaCl solution-treated (control) calves.
G, Saperstein, S B, Mohanty, D D, Rockemann, E, Russek   +3 more
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Structural Proteins of Bovine Viral Diarrhea Virus

American Journal of Veterinary Research, 1975
SUMMARY A procedure for the purification of radioactively labeled bovine viral diarrhea virus was critically evaluated. Purification of virus from artificial mixtures of unlabeled infected and labeled noninfected cells indicated that the extent of purification was approximately 100-fold with respect to host proteins.
R F, Pritchett, Y C, Zee
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Bovine Viral Diarrhea Infection in Pregnant Swine

American Journal of Veterinary Research, 1980
SUMMARY Twenty pregnant gilts (5 groups of 4) were infected experimentally with 1 of 4 strains of bovine viral diarrhea virus (bvdv) administered intranasally-orally. Blood specimens were taken from the gilts on postinfection day (pid) 7 and cultured for virus.
W C, Stewart, L D, Miller, J I, Kresse, M L, Snyder   +3 more
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Biosecurity and biocontainment of bovine viral diarrhea virus

Veterinary Clinics of North America: Food Animal Practice, 2004
Infection of cattle with BVDV results in a variety of clinical illnesses costly to the cattle industry worldwide. The reservoir and primary source of transmission is cattle born PI with BVDV after transplacental infection in early gestation. It is a challenge to determine with certainty whether or not BVDV is circulating among a herd of cattle.
David R, Smith, Dale M, Grotelueschen
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The Clinical Manifestations of Bovine Viral Diarrhea Infection

Veterinary Clinics of North America: Food Animal Practice, 1995
BVDV infections may result in a wide range of clinical manifestations ranging from subclinical infections to a severe, highly fatal form referred to as MD. In recent years, a better understanding of pathogenesis has been achieved that has allowed for a better understanding of the different clinical forms of BVDV infection.
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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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