Methods The nocturnal rodents were captured in different habitat every month. The parasitic fleas were collected, dissected and observed, as well as do plague bacillus culture and serum detection.
方法在不同生境内逐月捕获夜行鼠，并梳检鼠体蚤、解剖观察、细菌培养以及血清学检测。
Swiss bacteriologist who discovered the bacillus that causes bubonic plague.
瑞士细菌学家，曾发现了产生黑死病的杆状菌。
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