Table 1.
Presence of Bluetongue virus RNA and BTV antibodies in blood samples of ewes on different days post inoculation.
Table 2.
Presence of Bluetongue infectious virus or RNA in foetal tissues: BTV 8 infected group+commingled control.
Table 3.
Presence of Bluetongue infectious virus or RNA in foetal tissues: BTV-1 infected group+commingled control.
Figure 1.
Normal foetal brain with normally developed cerebral gyri.
Foetus 78654.2 (BTV-8 group, VI/PCR positive).
Figure 2.
Localized cystic defect in the cerebral hemisphere (right frontal lobe).
Foetus 78630.2 (BTV-1 group, VI/PCR positive).
Figure 3.
The cerebrum is transformed to fluid filled sacs with only focal presence of cerebral tissue at the periphery. Foetus 78631.3 (BTV-1 group, VI/PCR positive).
Figure 4.
Incidence ratio of microscopic findings.
Incidence of lesion per number of foetuses for the BTV-8 positive foetuses (n = 14), BTV-1 positive foetuses (n = 14) and BTV negative foetuses (n = 23).
Figure 5.
Increase of meninges thickness (A) due to mononuclear infiltrate, necrosis (arrow) and presence of giant cells(circle). Cerebrum (10×10) of foetus 78649.1 (BTV-1 group, VI/PCR positive).
Figure 6.
Mononuclear inflammatory infiltrates (circles).
Cerebrum (4×10) of foetus 78649.1 (BTV-1 group, VI/PCR positive).
Figure 7.
Necrosis and liquefaction of cerebral tissue.
Cerebrum (10×10) of foetus 78655.1 (BTV-1 group, VI/PCR positive).
Figure 8.
Necrosis, presence of multiple multinucleated giant cells (arrows), the lower one with vacuoles.
Cerebrum (40×10) of foetus 78655.1 (BTV-1 group, VI/PCR positive).
Figure 9.
Normally developed cerebral tissue.
Cerebrum (10×10) of foetus 78626.3(control of BTV-1 group, VI/PCR negative).
Figure 10.
Ballooning degeneration of epithelium (arrow) and congestion of blood vessels.
Plexus choroideus (20×10) of foetus 78631.3 (BTV-1 group, VI/PCR positive).