ICTV virus taxonomy profile: Circoviridae

Mya Breitbart, Eric Delwart, Karyna Rosario, Joaquim Segalés, Arvind Varsani, Report Consortium Ictv Report Consortium

Research output: Contribution to journalArticlepeer-review

123 Scopus citations


The family Circoviridae comprises viruses with small, circular, single-stranded DNA (ssDNA) genomes, including the smallest known animal viruses. Members of this family are classified into two genera, Circovirus and Cyclovirus, which are distinguished by the position of the origin of replication relative to the coding regions and the length of the intergenic regions. Within each genus, the species demarcation threshold is 80% genome-wide nucleotide sequence identity. This is a summary of the International Committee on Taxonomy of Viruses (ICTV) Report on the taxonomy of the Circoviridae, which is available at www.ictv.global/report/circoviridae.

Original languageEnglish (US)
Pages (from-to)1997-1998
Number of pages2
JournalJournal of General Virology
Issue number8
StatePublished - Aug 1 2017


  • Circoviridae
  • Circovirus
  • Cyclovirus
  • ICTV report
  • Taxonomy

ASJC Scopus subject areas

  • Virology


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