on the Belgian and northern France coast. Samples (spleen, lymph nodes, lung, epididymis, brain and selected lesions) of 85 harbor porpoises (Phocoena phocoena), 27 common seals (Phoca vitulina) and 5 grey seals (Halichoerus grypus) were examined for the presence of Brucella sp. by culture, real-time PCR, immunohistochemistry (IHC) and electron micro