Template:Gram-negative non-proteobacterial diseases

Treponema	* Treponema pallidum Syphilis/bejel Yaws Treponema carateum (Pinta) Treponema denticola
Borrelia	* Borrelia burgdorferi/Borrelia afzelii Lyme disease Erythema chronicum migrans Neuroborreliosis Borrelia recurrentis (Louse borne relapsing fever) Borrelia hermsii/Borrelia duttoni/Borrelia parkeri (Tick borne relapsing fever)

* Leptospira interrogans (Leptospirosis)

* Chlamydia psittaci (Psittacosis)

* Bacteroides fragilis

* Fusobacterium necrophorum (Lemierre's syndrome)