Genus: Harkavirus

Genus: Harkavirus

Distinguishing features

The genus is distinguished on the basis of genetic characters.



No details are available on the morphology of virions.

Nucleic acid

Genome (Boros et al., 2015b): 8,003 nt (5′-UTR: 673 nt; ORF: 7,263 nt; 3′-UTR: 67 nt). The location of the cre has not been identified. 

Genome organization and replication

Genome layout:


The deduced polyprotein is of 2,420 amino acids. There is no L protein. The function 2A is unknown.


No virus has been isolated. Viral RNA was detected in faeces of a 5-week-old common kestrel (Falco tinnunculus).

Derivation of names

Harkavirus: from Harkakötöny (a village in Hungary where the first sample was collected)

Species demarcation criteria

There is only a single species in the genus.

Member species

Exemplar isolate of the species
SpeciesVirus nameIsolateAccession numberRefSeq numberAvailable sequenceVirus Abbrev.
Harkavirus Aharkavirus A1; falcoviruskestrel/VOVE0622/2013/HUNKP230449NC_026921Complete genomeFaV

Virus names, the choice of exemplar isolates, and virus abbreviations, are not official ICTV designations.