Infectious Disease Compendium

Erysipelothrix rhusiopathiae

Microbiology

Thin gram positive rod.

Epidemiologic Risks

Causes disease in swine (insert your own cheap shot here; ABA being the easiest) and persists for long periods of time in fish, crabs, and whales. It causes "whale finger." Trauma from the aforementioned animals leads to disease.

Syndromes

A) erysipeloid, a localized skin lesion that acts like an indolent cellulitis. It can spread distally, not proximally.

B) a diffuse skin eruption with systemic symptoms, and

C) bacteremia with or without endocarditis.

Treatment

Penicillin OR imipenem OR ciprofloxacin.

Notes

Resistant to Vancomycin; macrolides and tetracyclines are unreliable.