Family: Picornaviridae

Genus: Tottorivirus


Distinguishing features

The genus is distinguished on the basis of genetic characters. 



No details are available on the morphology of virions. 

Nucleic acid

Genome (Naoi et al., 2016): 7,062 nt (5′–UTR: 754 nt; ORF: 6,273 nt; 3′–UTR: 125 nt). The location of the cre has not been identified. 

Genome organization and replication

Genome layout:


The deduced polyprotein is of 2,091 aa. The function of the L and 2A proteins is unclear. 


No virus has been isolated. Viral RNA was detected in a faecal specimen of a healthy, 2-month old piglet. 

Derivation of names

Tottorivirus: place name, refers to the Tottori prefecture, Japan, where the faecal sample was collected. 

Species demarcation criteria

There is only a single species in the genus.