Rolnictwo i żywność · 06/10/2003
USDA Proposes Changes to Bovine Virus Diarrhea and Bovine Rhinotracheitis Vaccine Regulations
The US Department of Agriculture is proposing to update the standards for Bovine Virus Diarrhea and Bovine Rhinotracheitis vaccines to ensure they provide adequate protection against virulent viruses, citing data that the current minimum antibody titer may not be sufficient.