Aquaparamyxovirus is a genus of viruses in the family Paramyxoviridae, order Mononegavirales.

[2] Fish serve as the natural hosts for AsaPV, in which the virus may cause proliferative gill inflammation.

Sequential transcription, viral mRNAs are capped and polyadenylated in the cytoplasm.

Replication presumably starts when enough nucleoprotein is present to encapsidate neo-synthesized antigenomes and genomes.

The ribonucleocapsid binds to the matrix protein and buds via the host ESCRT complexes occurs at the plasma membrane host receptors, which mediates endocytosis.