Found worldwide in the environment, it is a pathogen or commensal in a wide variety of wild and domestic animals, birds and fish.
In humans infections most commonly present in a mild cutaneous form known as erysipeloid or fish poisoning.
Erysipeloid, localized cellulitis, infections are most commonly diagnosed on the extremities, including the fingers and hands, where contact with contaminated material and damaged skin is most likely to occur.
Infections in humans are usually due to occupational exposure observed among butchers, veterinarians, meat porters, cooks, farmers and marine workers.
Portal of entry is usually through abrasions or puncture wounds of the skin.
Healing usually takes 3-4 weeks, but can take months and relapses are common.
Appropriate antibiotic therapy shortens the clinical illness and reduces the risk of relapse.
Other rare forms of infection include diffuse cutaneous infection and septicemia and infectious endocarditis.
