PUBLICATION V4
Bovine Leukemia Virus (BLV) & Lymphoma
If you have questions about this resource, contact the College of Veterinary Medicine.
Summary
Bovine Leukemia Virus (BLV), a lifelong retroviral infection in cattle that can reduce productivity and cause economic losses. Most infected cattle show no signs but can spread the virus within a herd. A portion develop persistent lymphocytosis, and 1–5% progress to lymphoma, usually in adult cattle. BLV is widespread in U.S. dairy and beef herds and spreads through infected blood, milk, colostrum, saliva, semen, and possibly in utero. There is no vaccine or effective treatment, so control relies on testing, biosecurity, management practices, and separating or culling BLV‑positive animals.
Publications in Series: CVM - Fact Sheets
Backyard Milk Quality
Bluetongue & Epizootic Hemorrhagic Disease
Laparoscopic Spaying in Companion Farm Animals
Pregnancy Diagnosis in Cattle
Equine Recurrent Uveitis (ERU) FAQs
Feline Corneal Sequestrum FAQs
Equine Ocular Squamous Cell Carcinoma (OSCC) FAQs
Feline Eosinophilic Keratoconjunctivitis FAQs
Feline Herpes Virus FAQs
Feline Uveitis FAQs
Hygromas FAQs
Equine Stromal Corneal Ulcers FAQs
Equine Immune-Mediated Keratitis (IMMK) FAQs
Equine Enucleation FAQs
Canine & Feline Hypertensive Retinopathy FAQs
Iodine 131 Therapy
Canine Glaucoma FAQs
Dry Eye Syndrome FAQs
Indolent Ulcers in Dogs FAQs
Stromal Corneal Ulcer in Small Animals FAQs
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