Sample positive for CPV-2, CPV2a, CPV-2b and CPV-2c. Lane M Gene Ruler 100 bp plus, Lane 1 Sample positive for CPV-2 (719 bp), Lane 2 Sample positive for CPV-2a (379 bp), Lane 3 Sample positive for CPV-2b (178 bp), Lane 4 Sample positive for CPV-2c (470 bp)