blosnavirus blosnavirus blosnavirus is a genus of viruses, in the family birnaviridae. blotched snakehead fish serve as natural hosts. there are two species in this genus. blosnavirus virus classification (unranked): virus realm: riboviria kingdom: orthornavirae phylum: incertae sedis family: birnaviridae genus: blosnavirus taxonomy the genus contains the following species: blotched snakehead virus lates calcarifer birnavirus structure viruses in blosnavirus are non-enveloped, with icosahedral and single-shelled geometries, and t=13 symmetry. the diameter is around 70 nm. genomes are linear and have 2 segments, around 2.7-3.4kb in length. the genome codes for 6 proteins. genusstructuresymmetrycapsidgenomic arrangementgenomic segmentation blosnavirusicosahedralt=13non-envelopedlinearsegmented life cycle viral replication is cytoplasmic. entry into the host cell is achieved by penetration into the host cell. replication follows the double-stranded rna virus replication model. double-stranded rna virus transcription is the method of transcription. blotched snakehead fish serve as the natural host. genushost detailstissue tropismentry detailsrelease detailsreplication siteassembly sitetransmission blosnavirusblotched snakehead fishnoneunknownbuddingcytoplasmcytoplasmunknown