RT Journal Article SR Electronic(1) A1 Breitbart, Mya A1 Delwart, Eric A1 Rosario, Karyna A1 Segalés, Joaquim A1 Varsani, Arvind A1 ICTV Report ConsortiumYR 2017 T1 ICTV Virus Taxonomy Profile: Circoviridae JF Journal of General Virology, VO 98 IS 8 SP 1997 OP 1998 DO https://doi.org/10.1099/jgv.0.000871 PB Microbiology Society, SN 1465-2099, AB 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., UL https://www.microbiologyresearch.org/content/journal/jgv/10.1099/jgv.0.000871