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美国卫生研究院文献>Epidemiology and Infection
>LXXX. Observations on the length of time that fleas (Ceratophyllus fasciatus) carrying Bacillus pestis in their alimentary canals are able to survive in the absence of a host and retain the power to re-infect with plague
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LXXX. Observations on the length of time that fleas (Ceratophyllus fasciatus) carrying Bacillus pestis in their alimentary canals are able to survive in the absence of a host and retain the power to re-infect with plague