Chromobacterium spp

From Dog
Chromobacterium violaceum on agar culture[1]

Chromobacterium spp are a gram negative zoonotic proteobacteria closely related to Burkholderia spp.

These proteobacteria are a saprophyte of soil and water in tropical and subtropical environments that is associated with rare but highly fatal infections in animals and chromoblastomycosis in humans[2].

Species which are reported in dogs include:

  • Chromobacterium violaceum[3]

These bacteria have reportedly caused systemic fatal illness in dogs[4].

Diagnosis is based on the identification of characteristic, violet-pigmented bacterial colonies on routine microbial cultures[5].


  1. Truman State Uni
  2. Currie BJ & Carapetis JR (2000) Skin infections and infestations in Aboriginal communities in northern Australia. Australas J Dermatol' 41(3):139-143
  3. Hore C (2001) Important unusual infections in Australia: a critical care perspective. Crit Care Resusc 3(4):262-272
  4. Crosse PA et al (2006) Chromobacterium violaceum infection in two dogs. J Am Anim Hosp Assoc 42(2):154-159
  5. Gogolewski RP (1983) Chromobacterium violaceum septicaemia in a dog. Aust Vet J 60(7):226