[2] Their name derives from the inferred circular structure of the viral genome (“redondo” means round in Spanish).

[1][5] The names derive from the words for breeze and wind in Spanish (“brisa” and “viento”), denoting the association with the human airway.

[citation needed] The redondoviruses are members of the Circular Rep-Containing Single Stranded (CRESS) DNA Virus group.

Follow up studies showed that a xenic culture containing Entamoeba gingivalis and feeder bacteria was also positive for redondovirus DNA and RNA.

Some CRESS viruses are known pathogens, such as porcine circovirus type 2[13] Redondoviruses have been reported associated with periodontitis.