Baculoviridae, 35, 39, 191, 195-202

Badnavirus, 335-337, 342-344, 346

Barnaviridae, 37, 40, 991-993

Barnavirus, 991-993

Bdellomicrovirus, 277-280, 282

Begomovirus, 285-286, 291-296

Benyvirus, 37, 39, 917-921

Betacryptovirus, 503-504, 510-512

Betaherpesvirinae, 203, 208-209, 214-217, 223-224

Betanodavirus, 747, 751-754

Betaretrovirus, 369-372, 374-376, 386

Betatetravirus, 757-760

Birnaviridae, 36, 40, 481-489

Bornaviridae, 36, 40, 525-529, 531-537

Bornavirus, 531-537

Bracovirus, 253, 257-259

Brevidensovirus, 311-316, 319, 321-323

Bromoviridae, 37, 40, 824, 923-941

Bromovirus, 923-928

Bunyaviridae, 36, 39, 599-630

Bunyavirus, 599-609, 620, 626

Bymovirus, 11, 703-705, 719-722