Members of this subfamily generally infect Enterococcus sp. with known isolates infecting E. faecalis and E. faecium. Virus genomes are of 140–155 kbp.
Derivation of names
Brockvirinae: named in honour of Thomas D. Brock (1926–), the eminent American microbiologist and educator known for his discovery of hyperthermophiles, who worked on Streptococcus phages early in his career.
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.