Table 2. Genotyping results from vaccinated and challenged animals with serotype specific PCR tests on Seg-2 (S2-genotyping) and restriction enzyme analysis of amplicons of the panBTV-PCR test (S10-genotyping).
Group (n = 4) | S2-genotyping (number of positive animals)a | S10–genotypingb | ||||||||||||||
11 dpv | 21 dpv | 14 dpc | 7 dpc | 11 dpc | 14 dpc | |||||||||||
Serotype | 1 | 6 | 8 | 1 | 6 | 8 | 1 | 6 | 8 | BT Vac-x | BTV8 | BT Vac-x | BTV8 | BT Vac-x | BTV8 | |
BTVac-1 | 1 | 4 | 0 | 0 | 4 | 0 | 0 | 4 | 0 | 0 | + | + | + | |||
BTVac-6 | 6 | 0 | 4 | 0 | 0 | 4 | 0 | 0 | 4 | 0 | + | + | + | |||
BTVac-8 | 8 | 0 | 0 | 4 | 0 | 0 | 3 | 0 | 0 | 3 | + | + | + | |||
CombiVac | 1, 6, 8 | 4 | 0 | 4 | 3 | 1 | 3 | 2 | 2 | 3 | + | + | + | |||
Control | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | + | + | + |
a. S2-genotyping was based on a serotype specific PCR-test with specific primer sets listed in table 1 [14].
b. S10-genotyping was based on the panBTV-PCR test used for diagnostic purposes [23]. The amplicon was digested with specific restriction enzymes and analyzed on an agarose gel, see materials and methods.