title: Short communication: Relationship between the level of bovine leukemia virus antibody and provirus in blood and milk of cows from a naturally infected herd.
abstract: We explored the relationship between the level of bovine leukemia virus antibodies and provirus load during natural infection. For that purpose, a set of 50 blood and milk paired samples were analyzed for the presence of bovine leukemia virus provirus and antibodies. Additionally, provirus load and antibody titers were measured and the relationship between these variables was investigated. Bovine leukemia provirus was detected in 59% of milk samples and a negative correlation was observed between the level of milk provirus load and milk antibody titers. By the consumption of raw milk, calves might be exposed to bovine leukemia virus favoring the perinatal transmission of this disease.
authors.affiliation: Instituto de Virología, Centro de Investigaciones en Ciencias Veterinarias y Agronomicas, Instituto Nacional de Tecnología Agropecuaria, Buenos Aires, Argentina. Electronic address: jaworski.juan@inta.gob.ar.
authors.forename: Juan P
authors.initials: JP
authors.lastname: Jaworski
authors.affiliation: Instituto de Virología, Centro de Investigaciones en Ciencias Veterinarias y Agronomicas, Instituto Nacional de Tecnología Agropecuaria, Buenos Aires, Argentina.
authors.forename: Natalia G
authors.initials: NG
authors.lastname: Porta
authors.affiliation: Instituto de Virología, Centro de Investigaciones en Ciencias Veterinarias y Agronomicas, Instituto Nacional de Tecnología Agropecuaria, Buenos Aires, Argentina.
authors.forename: Geronimo
authors.initials: G
authors.lastname: Gutierrez
authors.affiliation: Instituto de Virología, Centro de Investigaciones en Ciencias Veterinarias y Agronomicas, Instituto Nacional de Tecnología Agropecuaria, Buenos Aires, Argentina.
authors.forename: Romina P
authors.initials: RP
authors.lastname: Politzki
authors.affiliation: Instituto de Virología, Centro de Investigaciones en Ciencias Veterinarias y Agronomicas, Instituto Nacional de Tecnología Agropecuaria, Buenos Aires, Argentina.
authors.forename: Irene
authors.initials: I
authors.lastname: Álvarez
authors.affiliation: Instituto de Virología, Centro de Investigaciones en Ciencias Veterinarias y Agronomicas, Instituto Nacional de Tecnología Agropecuaria, Buenos Aires, Argentina.
authors.forename: Roxana
authors.initials: R
authors.lastname: Galarza
authors.affiliation: Instituto de Virología, Centro de Investigaciones en Ciencias Veterinarias y Agronomicas, Instituto Nacional de Tecnología Agropecuaria, Buenos Aires, Argentina.
authors.forename: Alejandro
authors.initials: A
authors.lastname: Abdala
authors.affiliation: Instituto de Virología, Centro de Investigaciones en Ciencias Veterinarias y Agronomicas, Instituto Nacional de Tecnología Agropecuaria, Buenos Aires, Argentina.
authors.forename: Luis
authors.initials: L
authors.lastname: Calvinho
authors.affiliation: Instituto de Virología, Centro de Investigaciones en Ciencias Veterinarias y Agronomicas, Instituto Nacional de Tecnología Agropecuaria, Buenos Aires, Argentina.
authors.forename: Karina G
authors.initials: KG
authors.lastname: Trono
mesh_terms: D000818:Animals; D000914:Antibodies, Viral / Q000097:blood; D002417:Cattle; D002418:Cattle Diseases / Q000276:immunology; D016583:Enzootic Bovine Leukosis / Q000821:virology; D005260:Female; D018445:Infectious Disease Transmission, Vertical; D001909:Leukemia Virus, Bovine / Q000276:immunology*; D008892:Milk / Q000821:virology*; D011533:Proviruses
chemical_list: D000914:Antibodies, Viral
keywords: antibodies; bovine leukemia virus; dairy cattle; mammary gland secretions; perinatal transmission