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Immunoblotting profiles of sheep sera collected in the Pyrénées-Atlantiques department.A: sera from infected reference animals, B: sera from uninfected reference animals, C: sera from flocks thought to be uninfected but bordering newly infected flocks. Lane T: positive reference serum (PAL97). Black arrows indicate bands close to 80, 48, 40, 30 or 27 kDa. Total proteins from M. agalactiae PG2 reference strain clone 55.5 [14] were used as antigen.
