Factors associated with in utero or periparturient transmission of bovine leukemia virus in calves on a California dairy

Can J Vet Res. 1991 Jul;55(3):264-8.

Abstract

A three-year prospective study involving 143 calves born from infected cows was undertaken on a California dairy to evaluate possible factors of the dam associated with bovine leukemia virus infection in utero or during the periparturient period. In utero or periparturient infection occurred at a rate of 4.8% and was more likely in calves born to cows with an average peripheral blood lymphocyte count during pregnancy greater than 12,000 cells/microL (p = 0.043) or in calves born to cows that developed malignant lymphoma (p = 0.00004), but not in calves born to cows with p-24 antibodies (p = 0.675).

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Animals
  • Antibodies, Viral / blood
  • Cattle
  • Cattle Diseases / transmission*
  • Chi-Square Distribution
  • Female
  • Leukemia / veterinary*
  • Leukemia Virus, Bovine / immunology*
  • Leukemia, Lymphoid / veterinary
  • Leukocyte Count / veterinary
  • Lymphocytes
  • Lymphoma / veterinary
  • Pregnancy
  • Pregnancy Complications, Infectious / veterinary*
  • Prospective Studies
  • Regression Analysis
  • Retroviridae Infections / transmission
  • Retroviridae Infections / veterinary*

Substances

  • Antibodies, Viral