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A case of systemic brucellosis caused by Brucella melitensis biovar 3 was identified in a chamois (Rupicapra rupicapra) in the southern French Alps. Clinical signs included bilateral orchiepididymitis and keratoconjunctivitis, polyarthritis, and neurological signs; pathological findings confirmed an ulcerative keratitis, orchiepididymitis with calcified or necrotic foci and serofibrinous and hemorrhagic polyarthritis. The kidney cortex showed calcified nodules and infarctions. A small focus of chronic pleuritis was also observed. Brain and pia mater showed degeneration, necrosis and calcification with perivascular lymphoplasmacytic and granulomatous inflammation. B. melitensis was evidenced in all these organs. This systemic brucellosis is unusual in our developed countries, in human an early medical action restricts the illness to localised lesions; domestic ruminants are slaughtered at the first clinical suspicion like abortion and/or after seroconversion.

Systemic brucellosis caused by Brucella melitensis biovar 3 was identified in a chamois (Rupicapra rupicapra) near the Parc National des Ecrins in the southern French Alps (France). Clinical signs included orchiepididymitis, polyarthritis, blindness and various neurological signs; necropsy findings included numerous calcified foci in testis, epididymis, kidney, subcutaneous connective tissue and brain. Brucella sp. were identified in brain by indirect immunofluorescence and B. melitensis biovar 3 was isolated from testis, kidney, eye, lung and joints. This report describes the first case of brucellosis and Brucella sp. isolation in chamois in France and the first case of B. melitensis isolation in this host species.