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Serologic responses (immunoglobulin M-ELISA) of mice infected with B. hermsii serotype 7 or B. crocidurae serotype C2. ELISA of total protein from B. hermsii serotype 7 (black bars) or B. crocidurae serotype C2 (grey bars) and either untreated (A) or treated with tetracycline (B) at day 2 postinfection. Error bars indicate standard deviation of the means.
