The shortest period of gestation up to vaecination resulting
in tramplaeental transmission of BV D virus without imnıune response of the
fetus was, in the present study, 123 days. From the data obtained it appears
reasonable to estimate 90 to 120 days of gestation as the period when vaecination
wit/ı BVD live virus wit/ı BVD live virus irifeetion of dams can be expeeted to
initiate an immune reaetion of the fe/US. It was within this gestational period
that live virus vaeeination fıımished fiue ealves sıiffering from eNS symptoms
and two ealves wit/ı persistent BVD virus in{eeti01ı in addition to two abortions
possib?y' related to the vaccine virus infeetion.
Primary Language | English |
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Subjects | Veterinary Surgery |
Journal Section | Research Article |
Authors | |
Publication Date | January 1, 1987 |
Published in Issue | Year 1987Volume: 34 Issue: 03 |