[Characteristics of the action and nature of a bactericidal factor in the flea intestine].
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Biomedical subjects
Publications and source records attributed to N M Khrustselevskaia.
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Results of the experimental infection of fleas (X. cheopis) with the plague agent after their long (2.5 years, 19 generations) feeding on infected white mice showed no difference in the infection activity of these insects as compared to control ones. The authors question the hypothesis according to which a low frequency of protein-formation in some species of fleas is due to their long contact with the plague agent in the historical past.
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