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The first instance of anti-Brucella antibodies in the Southern Hemisphere was recorded in two pinniped species from Antarctica: Antarctic fur seal (Arctocephalus gazella) and Weddell seal (Leptonychotes weddellii). Taking into account these first records, this paper describes additional data on Brucella antibodies in A. gazella obtained at Cape Shirreff, Livingston Island, Antarctica. Eighty-six A. gazella body fluid samples were collected from 77 live animals and nine from bead animals. Body fluid samples (blood, pleural fluid or pericardic fluid) were tested using the Rose Bengal (RB) test, the Competitive Enzymoimmunoassay (c-ELISA) test and the Competitive Enzymoimmunoassay 'COMPELISA (R)' test. Antibodies against Brucella spp. were detected in one sample with the RB test, and in five of the 86 samples (5.8%) using the c-ELISA test. These results present serological evidence of Brucella infection in A …