Transplacental transmission of bovine adenovirusesTransmission transplacentaire d'adenovirus bovins |
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Authors: | A Bartha Susanne Máté |
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Institution: | 1. Veterinary Medical Research Institute of the Hungarian Academy of Sciences, Budapest, P.O. Box 18, H-1581 Hungary;2. Veterinary Institute, Miskolc, Hungary |
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Abstract: | Type 1 bovine adenovirus has been isolated from cell cultures prepared from the kidneys of a 7-month-old bovine fetus, taken from a slaughterhouse, and types 4, 6 and 8 from cell cultures prepared from the testicles of four neonatal, precolostral calves. Sera of these pre-colostral calves possessed virus-neutralizing antibodies in titers of 1:4–1:16. Bovine adenoviruses of types 4 and 8 have also been isolated from two bovine fetuses aborted from an unknown cause. Relying upon these findings the possible vertical (transplacental) transmission of bovine adenoviruses is presumed. Though a cause-and-effect relationship between abortion and adenovirus infection could not be detected, it is probable that infection during fetal development cannot be indifferent to the fetus or the neonatal calf. |
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Keywords: | Aborted fetus bovine adenovirus procolostral calves transplacental transmission vertical spread Avorton adénovirus bovin veaux précolostraux transmission transplacentaire diffusion verticale |
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