Fig. 5From: Insemination with border disease virus-infected semen results in seroconversion in cows but not persistent infection in fetusesRelative optical density (OD) in the ELISA for pestivirus antibody in the serum of 5 cows inseminated with BD virus-infected semen and a control cow from day 0 to day 56 of the infection phase expressed as a percentage to the OD of a standard serum. Relative OD values > 30% (dotted line) are defined as positiveBack to article page