Abstract:
The invention belongs to the field of animal health and in particular Bovine Viral Diarrhea Virus (BVDV). The invention provides infectious BVDV clones and methods to produce said BVDV clones. The invention further relates to methods of attenuating said clones, attenuated BVDV clones and vaccines comprising said attenuated clones.
Abstract:
The invention concerns a process for disintegrating any biologically active nucleic acid in a biological material. According to the invention, a biologically active material is exposed one or a plurality of times to a laser beam in order essentially to disintegrate the entire biologically active nucleic acid in this biological material, whilst the biological integrity and activity of the biological material are retained.