Comparison of blood non-specific immune parameters in Bovine virus diarrhoea virus (BVDV) persistently infected and in immune heifers

Journal of Veterinary Medicine. B, Infectious Diseases and Veterinary Public Health
R PiccininiA Zecconi

Abstract

Several data from different authors show that Bovine virus diarrhoea virus (BVDV) could be a key component in multiple-etiology diseases, indeed a lower leukocytes number and their impaired functions decrease the resistance to infections. However, most of the information on the impairment of immune function during BVDV infections arise from circumstantial evidence and from experimental infection studies, and few from field data. To assess the effects of BVDV on blood cells parameters, cellular and humoral functions under field conditions, we designed a controlled study in commercial dairy herds, comparing persistent infected (PI) and healthy heifers. A total of 45 heifers were considered, the PI animals were nine, the control animals were 34, while two controls were considered as acute infected animals. The comparison of the mean values in PI calves showed a significant decrease for leukocytes and granulocytes, while platelets showed a significant increase, when compared with control animals. The total number of lymphocytes decreased not significantly in PI animals, while the proportion significantly increased. The number and proportion of monocytes was significantly reduced in PI animals, when compared with controls. The data ...Continue Reading

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Citations

Jan 15, 2010·Veterinary Clinical Pathology·Jeanne W GeorgeV Michael Lane
Nov 10, 2012·Biologicals : Journal of the International Association of Biological Standardization·Christopher C L Chase
May 6, 2008·Zoonoses and Public Health·B A Serrano-MorenoC Estrada-Chávez
Aug 4, 2010·American Journal of Reproductive Immunology : AJRI·Thomas R HansenHelle Bielefeldt-Ohmann
Jun 24, 2008·Comparative Immunology, Microbiology and Infectious Diseases·Alfonso ZecconiMassimo Amadori
Aug 15, 2014·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·Leonie RolandMichael Iwersen
Feb 18, 2009·Veterinary Research·Angel H AlvarezMario Alberto Flores-Valdez
Jan 3, 2020·Animal Health Research Reviews·Chike F OguejioforD Claire Wathes

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