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  • Title: Experimental inoculation of pregnant swine with type 1 bovine viral diarrhoea virus.
    Author: Walz PH, Baker JC, Mullaney TP, Maes RK.
    Journal: J Vet Med B Infect Dis Vet Public Health; 2004 May; 51(4):191-3. PubMed ID: 15228555.
    Abstract:
    The ability of bovine viral diarrhoea virus type 1 (BVDV-1) to induce transplacental infection in pigs was evaluated. Control pigs (n = 4) were sham-inoculated while infected pigs (n = 4) were intranasally inoculated with BVDV-1 on day 65 of gestation. Blood samples were tested throughout the study for BVDV and antibody to BVDV. On day 110 of gestation, a Caesarean section was performed. Serum was obtained for virus isolation and antibody determination from all piglets, and all experimental animals were killed. Tissues were collected for virus isolation and histopathology. Bovine viral diarrhoea virus was isolated on days 5 and 7 after infection and seroconversion was demonstrated in all infected gilts; however, BVDV was only isolated from one fetus from an infected pig. Viraemia and seroconversion were demonstrated in the pregnant gilts; however, transplacental infection at day 65 of gestation in the pig was not consistently demonstrated.
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