A Brucella canis infection, causing recurrent fever with so-called granulomatous hepatitis and splenomegaly, was detected serologically in a 30-year-old female patient. The disease originated in an infected dog from Greece which also showed a high titre. Following successful initial treatment with cotrimoxazole and streptomycin the disease broke out again on two further occasions. The infection was finally cured by 4-months continuous cotrimoxazole treatment after which the Brucella canis titre dropped from 1:1280 to 1:40 and then to zero. The patient has been symptom-free for the last two years.