| Histophilus | somni |
| Haemophilus | parasuis, paragallinarum, influenzae |
| dawne Haemophilus (1) | Histophilus ovis i Haemophilus somnus -> Histophilus somni, |
| dawne Haemophilus (2) | Haemophilus paragallinarum -> Avibacterium paragallinarum |
| Corynebacterium | diphtheriae, ulcerans, pseudotuberculosis, renale (renale, pilosum, cystitidis), bovis |