Evaluation of risks of viral transmission to recipients of bovine embryos arising from fertilisation with virus-infected semen.


This scientific review was prompted by recent legislation to curtail the use of semen from potentially virus-infected bulls to produce embryos for import into the European Union. From studies in laboratory animals, humans and horses, it is apparent that viruses may sometimes attach to, or be integrated into, spermatozoa, although in domestic livestock… (More)