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Three techniques for the diagnosis of mammary aspergillosis in ewes were compared: indirect ELISA to detect the level of anti-Aspergillus IgG in serum, determination of galactomannan (Platelia procedure), and detection of DNA of Aspergillus in serum by a nested PCR.Twenty sera from proven cases of aspergillosis in ewes were positive using ELISA (100%), 80% were positive using PCR, but only 55% were...