the genome sequences and the nucleotide sequences coding for the pwd circovirus polypeptides , such as the circovirus structural and non - structural polypeptides , vectors including the sequences , and cells and animals transformed by the vectors are provided . methods for detecting the nucleic acids or polypeptides , and kits for diagnosing infection by a pwd circovirus , also are provided . method for selecting compounds capable of modulating the viral infection are further provided . pharmaceutical , including vaccines , compositions for preventing and / or treating viral infections caused by pwd circovirus and the use of vectors for preventing and / or treating diseases also are provided .