Table 1.
Seroconversion of PRRSV antibody and antigen during the course of immunization and challenge shown by numbers of positive samples versus numbers of tested samples
| Group | Immunization at day 0 | No. of positive samples/no. of tested samples |
Challenge at day 28 | No. of positive samples/no. of tested samples |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day 0 |
Day 14 |
Day 28 |
Day 35 |
Day 42 |
Day 49 |
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| ELISA | PCR | ELISA | PCR | ELISA | PCR | ELISA | PCR | ELISA | PCR | ELISA | PCR | |||
| 1 | P100 | 0/5 | 0/5 | 5/5 | 5/5 | 5/5 | 0/5 | P5 | 5/5 | 5/5 | 5/5 | 4/5 | 5/5 | 2/5 |
| 2 | P110 | 0/5 | 0/5 | 5/5 | 5/5 | 5/5 | 1/5 | P5 | 5/5 | 5/5 | 5/5 | 5/5 | 5/5 | 4/5 |
| 3 | P120 | 0/5 | 0/5 | 3/5 | 3/5 | 4/5 | 2/5 | P5 | 5/5 | 5/5 | 5/5 | 4/5 | 4/4 | 2/4 |
| 4 | P140 | 0/5 | 0/5 | 0/5 | 1/5 | 1/5 | 2/5 | P5 | 2/5 | 5/5 | 5/5 | 3/5 | 4/4 | 2/4 |
| 5 | P170 | 0/5 | 0/5 | 1/5 | 1/5 | 1/5 | 1/5 | P5 | 2/5 | 5/5 | 3/5 | 3/5 | 4/4 | 1/4 |
| 6 | DMEM | 0/5 | 0/5 | 0/5 | 0/5 | 0/5 | 0/5 | P5 | 2/5 | 5/5 | 4/4 | 4/4 | 2/2 | 2/2 |
| 7 | DMEM | 0/5 | 0/5 | 0/5 | 0/5 | 0/5 | 0/5 | DMEM | 0/5 | 0/5 | 0/5 | 0/5 | 0/5 | 0/5 |