Stevens, Elliot T., Michael S. Brown, William W. Burdett, Michael W. Bolton, Scott T. Nordstrom, and Christopher C. L. Chase. 2010. “Efficacy of a Non-Adjuvanted, Modified-Live Virus Vaccine in Calves With Maternal Antibodies Against a Virulent Bovine Viral Diarrhea Virus Type 2a Challenge Seven Months Following Vaccination”. The Bovine Practitioner 45 (1):23-31. https://doi.org/10.21423/bovine-vol45no1p23-31.