CDS1 and infection: In assays based on recombinant lipoproteins encoded by CDs Mbov_0116 (rMbovP116) and CDs Mbov_0275 (rMbovP275), sera from 20% (4/20) of the infected calves and 25% (2/8) of the vaccinated calves were positive 14 days after treatment; sera from all calves were positive by day 35 post-infection/vaccination, although antibody levels were relatively low (Figures 4A and 4B).