The genus is distinguished on the basis of genetic characters.
No details are available on the morphology of virions.
Genome organization and replication
The deduced polyprotein is c. 2,170 amino acids. There is no L protein. The 1AB protein remains uncleaved.
No virus has been isolated. Viral RNA was detected in faeces and intestinal contents, respectively, of wild shrews in Zambia and fruit bats (Eidolon helvum) in Cameroon.
Derivation of names
Crohivirus: from Crocidura hirta (the lesser red musk shrew from which the first strain was isolated)
Species demarcation criteria
Members of a species of the genus Crohivirus:
- share a common genome organization
- are less than 55% divergent in polyprotein aa sequence
- are less than 60% divergent in P1 aa sequence
- are less than 50% divergent in 2C + 3CD aa sequence