Below are the Known Methods of BLV Transmission:
Horizontal Transmission
- Biting flies
- Multiple-use hypodermic needles
- Gouge type dehorning and tattooing
- Blood exchange during natural breeding
- Reproductive exam and artificial insemination sleeves contaminated with BLV-infected blood
Vertical Transmission
- Colostrum and milk
- Placental transmission and transmission by blood exchange during birthing
Go here to learn more about BLV transmission and how to prevent it.