A novel parvovirus (family Parvoviridae ) in a freshwater fish, zander ( Sander lucioperca )

In this study, a novel parvovirus (zander/M5/2015/HUN, OK236393) was detected in faecal specimens from a fish – zander or pikeperch ( Sander lucioperca ) – and genetically characterized using viral metagenomics and PCR methods. The NS1 and VP1 proteins of zander/M5/2015/HUN share <30% aa sequence identity, respectively, with the corresponding proteins of known members of the family Parvoviridae. Out of 62 faecal specimens collected from 13 freshwater fish species, three (4.8%) samples were positive by PCR for the novel parvovirus – all from zander. This is the second parvovirus detected in fish – after the disease-causing tilapia parvovirus of the subfamily Hamaparvovirinae – and it potentially represents a novel genus in the subfamily Parvovirinae .