Papilloma viruses (PVs) are non-enveloped. small. double stranded DNA viruses with circular genomes that replicate intranuclearly in infected cells. Papilloma viruses have high affinity for stratified squamous epithelia of warm blooded animals including cattle and occurs in all animal species throughout the world. https://www.fitnessgravesyardes.shop/product-category/brake-pad-assembly/