Table 1.
Experimental design and groups. The pigs in groups 1–3 were vaccinated with either Suvaxyn PRRS MLV (SUV), Unistrain PRRS (UNI) or Porcilis PRRS (PORCI), according to the SPC of each vaccine. The pigs in groups 4–6 were left unvaccinated. At dpv 28, all pigs in groups 1–4 were challenged with the recombinant “Horsens” strain (REC) and the pigs in group 5 were challenged with the “Finistere” strain (REF).
| Group | No. of Pigs | Vaccination (dpv 0) |
Challenge (dpv 28) |
|---|---|---|---|
| 1 (SUV) | 6 | Suvaxyn PRRS MLV | Horsens |
| 2 (UNI) | 6 | Unistrain®PRRS | Horsens |
| 3 (PORCI) | 6 | Porcilis®PRRS | Horsens |
| 4 (REC) | 6 | None | Horsens |
| 5 (REF) | 6 | None | Finistere |
| 6 (CTRL) | 6 | None | None |