Family: Herelleviridae

Subfamily: Brockvirinae

Distinguishing features

Members of this subfamily generally infect Enterococcus sp. with known isolates infecting Enterococcus faecalis and Enterococcus faecium. Virus genomes are 130–155 kbp (Khalifa et al., 2015b, Barylski et al., 2020, del Rio et al., 2020, Alkalay-Oren et al., 2021, Kishimoto et al., 2021).

Genus demarcation criteria

The single genus in the Brockvirinae is a well-supported monophyletic clade in genome-based phylogenies and in (concatenated) marker gene phylogenies. Members of the genus share at least 60% nucleotide identity across the genome length, a conserved genome organisation and generally infect members of the same bacterial genus.