Story by Paul Bartlett, read by Jessica Mitchell. The majority of dairy cattle in the U.S. are now infected with Bovine Leukemia Virus (BLV). Virus control through BLV testing and infected animal segregation are among the next steps against BLV in cattle. For more great articles on livestock and land management, large and small farming, and even bees, go to the GRIT website.  If you’re interested in workshops about everything from cheesemaking to soil health to building around your property, you can take our online classes and attend the MOTHER EARTH NEWS Fairs. Grit’s sister publications are MOTHER EARTH NEWS, Backyard Poultry and Backyard Beekeeping.