# Characterization of the genomic sequence of a circo-like virus and of three chaphamaparvoviruses detected in mute swan (Cygnus olor)

## TL;DR

This study identifies and characterizes four new single-stranded DNA viruses found in mute swans from the UK.

## Contribution

The discovery of a circo-like virus in birds expands its known host range beyond mammals.

## Key findings

- A circo-like virus was identified in mute swans, previously only found in mammals.
- Three chaphamaparvoviruses were detected through viromic analysis of swan fecal samples.
- The complete genomic sequences of all four viruses were characterized.

## Abstract

We report the complete genomes of four ssDNA viruses: a circular replication-associated protein-encoding single-stranded DNA virus belonging to a clade previously detected only in mammals, and three chaphamaparvoviruses, which were detected by viromic surveillance of mute swan (Cygnus olor) fecal samples from the United Kingdom.