Figure 1.
Serum-virus titers after 07 V063 challenge for group CON (Mock-vaccinated control), 07 V063i (BEI-inactivated 07 V063), LVi (BEI-inactivated LV), PROi (Progressis®), PORatt (Porcilis® PRRS) and INGatt (Ingelvac® PRRS MLV). Virus titers in serum (log10 TCID50/mL) were determined by virus titration on PAM, followed by immunoperoxidase staining for the PRRSV nucleocapsid protein. ↑ = challenge. Symbols represent individual animals and solid lines represent mean virus titers calculated on all animals present in each group. The dashed line indicates the mean titers for all animals in group CON. The dotted line marks the detection limit for virus titration. Mentioned in the table: # = the number of viremic animals in the different groups at different time points. M = mean virus titer of all viremic animals in the group at different time points.