Vaccines; DNA based vaccines; DNA extracts, namely, nucleic acid sequences and chemical reagents for medical use; therapeutic DNA, namely, nucleic acid sequences and chemical reagents for medical and veterinary purposes; nucleic acids comprising natural and unnatural nucleotides for medical and veterinary purposes; nucleic acid analogues comprising synthetic backbones or a mixture of natural and synthetic backbones for medical and veterinary purposes; composites of nucleic acids or nucleic ac...